Changeset 195890b in mainline

Timestamp:

2011-04-03T21:39:28Z (13 years ago)

Author:

Matus Dekanek <smekideki@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

3bb6b35

Parents:

6c399765

Message:

codelifting

Location:

uspace/drv

Files:

• ohci/root_hub.c (modified) (33 diffs)
• usbhub/usbhub.c (modified) (46 diffs)
• usbhub/usbhub.h (modified) (2 diffs)

uspace/drv/ohci/root_hub.c

@@ -47 +47 @@
  *      standart device descriptor for ohci root hub
  */
-static const usb_standard_device_descriptor_t ohci_rh_device_descriptor =
-{
-                .configuration_count = 1,
-                .descriptor_type = USB_DESCTYPE_DEVICE,
-                .device_class = USB_CLASS_HUB,
-                .device_protocol = 0,
-                .device_subclass = 0,
-                .device_version = 0,
-                .length = sizeof(usb_standard_device_descriptor_t),
-                /// \TODO this value is guessed
-                .max_packet_size = 8,
-                .vendor_id = 0x16db,
-                .product_id = 0x0001,
-                /// \TODO these values migt be different
-                .str_serial_number = 0,
-                .usb_spec_version = 0x110,
+static const usb_standard_device_descriptor_t ohci_rh_device_descriptor = {
+        .configuration_count = 1,
+        .descriptor_type = USB_DESCTYPE_DEVICE,
+        .device_class = USB_CLASS_HUB,
+        .device_protocol = 0,
+        .device_subclass = 0,
+        .device_version = 0,
+        .length = sizeof (usb_standard_device_descriptor_t),
+        /// \TODO this value is guessed
+        .max_packet_size = 8,
+        .vendor_id = 0x16db,
+        .product_id = 0x0001,
+        /// \TODO these values migt be different
+        .str_serial_number = 0,
+        .usb_spec_version = 0x110,
 };
 
@@ -69 +68 @@
  * for ohci root hubs
  */
-static const usb_standard_configuration_descriptor_t ohci_rh_conf_descriptor =
-{
+static const usb_standard_configuration_descriptor_t ohci_rh_conf_descriptor = {
         /// \TODO some values are default or guessed
-        .attributes = 1<<7,
+        .attributes = 1 << 7,
         .configuration_number = 1,
         .descriptor_type = USB_DESCTYPE_CONFIGURATION,
         .interface_count = 1,
-        .length = sizeof(usb_standard_configuration_descriptor_t),
+        .length = sizeof (usb_standard_configuration_descriptor_t),
         .max_power = 100,
         .str_configuration = 0,
@@ -84 +82 @@
  * standart ohci root hub interface descriptor
  */
-static const usb_standard_interface_descriptor_t ohci_rh_iface_descriptor =
-{
+static const usb_standard_interface_descriptor_t ohci_rh_iface_descriptor = {
         .alternate_setting = 0,
         .descriptor_type = USB_DESCTYPE_INTERFACE,
@@ -94 +91 @@
         .interface_protocol = 0,
         .interface_subclass = 0,
-        .length = sizeof(usb_standard_interface_descriptor_t),
+        .length = sizeof (usb_standard_interface_descriptor_t),
         .str_interface = 0,
 };
@@ -101 +98 @@
  * standart ohci root hub endpoint descriptor
  */
-static const usb_standard_endpoint_descriptor_t ohci_rh_ep_descriptor =
-{
+static const usb_standard_endpoint_descriptor_t ohci_rh_ep_descriptor = {
         .attributes = USB_TRANSFER_INTERRUPT,
         .descriptor_type = USB_DESCTYPE_ENDPOINT,
-        .endpoint_address = 1 + (1<<7),
-        .length = sizeof(usb_standard_endpoint_descriptor_t),
+        .endpoint_address = 1 + (1 << 7),
+        .length = sizeof (usb_standard_endpoint_descriptor_t),
         .max_packet_size = 8,
         .poll_interval = 255,
@@ -113 +109 @@
 static const uint32_t hub_clear_feature_valid_mask =
         (1 << USB_HUB_FEATURE_C_HUB_LOCAL_POWER) +
-        (1 << USB_HUB_FEATURE_C_HUB_OVER_CURRENT);
+(1 << USB_HUB_FEATURE_C_HUB_OVER_CURRENT);
 
 static const uint32_t hub_clear_feature_by_writing_one_mask =
@@ -121 +117 @@
         (1 << USB_HUB_FEATURE_C_HUB_OVER_CURRENT);
 
-        
+
 static const uint32_t hub_set_feature_direct_mask =
         (1 << USB_HUB_FEATURE_C_HUB_OVER_CURRENT);
@@ -127 +123 @@
 static const uint32_t port_set_feature_valid_mask =
         (1 << USB_HUB_FEATURE_PORT_ENABLE) +
-        (1 << USB_HUB_FEATURE_PORT_SUSPEND) +
-        (1 << USB_HUB_FEATURE_PORT_RESET) +
-        (1 << USB_HUB_FEATURE_PORT_POWER);
+(1 << USB_HUB_FEATURE_PORT_SUSPEND) +
+(1 << USB_HUB_FEATURE_PORT_RESET) +
+(1 << USB_HUB_FEATURE_PORT_POWER);
 
 static const uint32_t port_clear_feature_valid_mask =
         (1 << USB_HUB_FEATURE_PORT_CONNECTION) +
-        (1 << USB_HUB_FEATURE_PORT_SUSPEND) +
-        (1 << USB_HUB_FEATURE_PORT_OVER_CURRENT) +
-        (1 << USB_HUB_FEATURE_PORT_POWER) +
-        (1 << USB_HUB_FEATURE_C_PORT_CONNECTION) +
-        (1 << USB_HUB_FEATURE_C_PORT_ENABLE) +
-        (1 << USB_HUB_FEATURE_C_PORT_SUSPEND) +
-        (1 << USB_HUB_FEATURE_C_PORT_OVER_CURRENT) +
-        (1 << USB_HUB_FEATURE_C_PORT_RESET);
-//note that USB_HUB_FEATURE_PORT_POWER bit is translated into USB_HUB_FEATURE_PORT_LOW_SPEED
-
-
-
+(1 << USB_HUB_FEATURE_PORT_SUSPEND) +
+(1 << USB_HUB_FEATURE_PORT_OVER_CURRENT) +
+(1 << USB_HUB_FEATURE_PORT_POWER) +
+(1 << USB_HUB_FEATURE_C_PORT_CONNECTION) +
+(1 << USB_HUB_FEATURE_C_PORT_ENABLE) +
+(1 << USB_HUB_FEATURE_C_PORT_SUSPEND) +
+(1 << USB_HUB_FEATURE_C_PORT_OVER_CURRENT) +
+(1 << USB_HUB_FEATURE_C_PORT_RESET);
+//note that USB_HUB_FEATURE_PORT_POWER bit is translated into
+//USB_HUB_FEATURE_PORT_LOW_SPEED
+
+static void usb_create_serialized_hub_descriptor(rh_t *instance,
+        uint8_t ** out_result,
+        size_t * out_size);
+
+static void rh_init_descriptors(rh_t *instance);
+
+static int process_get_port_status_request(rh_t *instance, uint16_t port,
+        usb_transfer_batch_t * request);
+
+static int process_get_hub_status_request(rh_t *instance,
+        usb_transfer_batch_t * request);
+
+static int process_get_status_request(rh_t *instance,
+        usb_transfer_batch_t * request);
+
+static void create_interrupt_mask(rh_t *instance, void ** buffer,
+        size_t * buffer_size);
+
+static int process_get_descriptor_request(rh_t *instance,
+        usb_transfer_batch_t *request);
+
+static int process_get_configuration_request(rh_t *instance,
+        usb_transfer_batch_t *request);
+
+static int process_hub_feature_set_request(rh_t *instance, uint16_t feature);
+
+
+static int process_hub_feature_clear_request(rh_t *instance,
+        uint16_t feature);
+
+static int process_port_feature_set_request(rh_t *instance,
+        uint16_t feature, uint16_t port);
+
+static int process_port_feature_clear_request(rh_t *instance,
+        uint16_t feature, uint16_t port);
+
+static int process_address_set_request(rh_t *instance,
+        uint16_t address);
+
+static int process_request_with_output(rh_t *instance,
+        usb_transfer_batch_t *request);
+
+static int process_request_with_input(rh_t *instance,
+        usb_transfer_batch_t *request);
+
+static int process_request_without_data(rh_t *instance,
+        usb_transfer_batch_t *request);
+
+static int process_ctrl_request(rh_t *instance, usb_transfer_batch_t *request);
+
+
+
+
+
+/** Root hub initialization
+ * @return Error code.
+ */
+int rh_init(rh_t *instance, ddf_dev_t *dev, ohci_regs_t *regs) {
+        assert(instance);
+        //instance->address = -1;
+        instance->registers = regs;
+        instance->device = dev;
+        instance->port_count = instance->registers->rh_desc_a & 0xff;
+        rh_init_descriptors(instance);
+        /// \TODO set port power mode
+
+
+        usb_log_info("OHCI root hub with %d ports.\n", instance->port_count);
+
+        //start generic usb hub driver
+
+        /* TODO: implement */
+        return EOK;
+}
+/*----------------------------------------------------------------------------*/
+
+/**
+ * process root hub request
+ *
+ * @param instance root hub instance
+ * @param request structure containing both request and response information
+ * @return error code
+ */
+int rh_request(rh_t *instance, usb_transfer_batch_t *request) {
+        assert(instance);
+        assert(request);
+        int opResult;
+        if (request->transfer_type == USB_TRANSFER_CONTROL) {
+                usb_log_info("Root hub got CONTROL packet\n");
+                opResult = process_ctrl_request(instance, request);
+        } else if (request->transfer_type == USB_TRANSFER_INTERRUPT) {
+                usb_log_info("Root hub got INTERRUPT packet\n");
+                void * buffer;
+                create_interrupt_mask(instance, &buffer,
+                        &(request->transfered_size));
+                memcpy(request->transport_buffer, buffer,
+                        request->transfered_size);
+                opResult = EOK;
+        } else {
+                opResult = EINVAL;
+        }
+        usb_transfer_batch_finish(request, opResult);
+        return EOK;
+}
+
+/*----------------------------------------------------------------------------*/
+
+
+void rh_interrupt(rh_t *instance) {
+        usb_log_info("Whoa whoa wait, I`m not supposed to receive any "
+                "interrupts, am I?\n");
+        /* TODO: implement? */
+}
+/*----------------------------------------------------------------------------*/
 
 /**
@@ -157 +266 @@
  */
 static void usb_create_serialized_hub_descriptor(rh_t *instance,
-                uint8_t ** out_result,
-                size_t * out_size) {
+        uint8_t ** out_result,
+        size_t * out_size) {
         //base size
         size_t size = 7;
         //variable size according to port count
         size_t var_size = instance->port_count / 8 +
-                        ((instance->port_count % 8 > 0) ? 1 : 0);
+                ((instance->port_count % 8 > 0) ? 1 : 0);
         size += 2 * var_size;
         uint8_t * result = (uint8_t*) malloc(size);
-        bzero(result,size);
+        bzero(result, size);
         //size
         result[0] = size;
@@ -174 +283 @@
         uint32_t hub_desc_reg = instance->registers->rh_desc_a;
         result[3] =
-                        ((hub_desc_reg >> 8) %2) +
-                        (((hub_desc_reg >> 9) %2) << 1) +
-                        (((hub_desc_reg >> 10) %2) << 2) +
-                        (((hub_desc_reg >> 11) %2) << 3) +
-                        (((hub_desc_reg >> 12) %2) << 4);
+                ((hub_desc_reg >> 8) % 2) +
+                (((hub_desc_reg >> 9) % 2) << 1) +
+                (((hub_desc_reg >> 10) % 2) << 2) +
+                (((hub_desc_reg >> 11) % 2) << 3) +
+                (((hub_desc_reg >> 12) % 2) << 4);
         result[4] = 0;
         result[5] = /*descriptor->pwr_on_2_good_time*/ 50;
@@ -185 +294 @@
         int port;
         for (port = 1; port <= instance->port_count; ++port) {
-                result[7 + port/8] +=
-                                ((instance->registers->rh_desc_b >> port)%2) << (port%8);
+                uint8_t is_non_removable =
+                        instance->registers->rh_desc_b >> port % 2;
+                result[7 + port / 8] +=
+                        is_non_removable << (port % 8);
         }
         size_t i;
@@ -195 +306 @@
         (*out_size) = size;
 }
-
+/*----------------------------------------------------------------------------*/
 
 /** initialize hub descriptors
@@ -203 +314 @@
  * @instance root hub instance
  */
-static void rh_init_descriptors(rh_t *instance){
+static void rh_init_descriptors(rh_t *instance) {
         memcpy(&instance->descriptors.device, &ohci_rh_device_descriptor,
-                sizeof(ohci_rh_device_descriptor)
-        );
+                sizeof (ohci_rh_device_descriptor)
+                );
         usb_standard_configuration_descriptor_t descriptor;
-        memcpy(&descriptor,&ohci_rh_conf_descriptor,
-                        sizeof(ohci_rh_conf_descriptor));
+        memcpy(&descriptor, &ohci_rh_conf_descriptor,
+                sizeof (ohci_rh_conf_descriptor));
         uint8_t * hub_descriptor;
         size_t hub_desc_size;
         usb_create_serialized_hub_descriptor(instance, &hub_descriptor,
-                        &hub_desc_size);
+                &hub_desc_size);
 
         descriptor.total_length =
-                        sizeof(usb_standard_configuration_descriptor_t)+
-                        sizeof(usb_standard_endpoint_descriptor_t)+
-                        sizeof(usb_standard_interface_descriptor_t)+
-                        hub_desc_size;
-        
+                sizeof (usb_standard_configuration_descriptor_t) +
+                sizeof (usb_standard_endpoint_descriptor_t) +
+                sizeof (usb_standard_interface_descriptor_t) +
+                hub_desc_size;
+
         uint8_t * full_config_descriptor =
-                        (uint8_t*) malloc(descriptor.total_length);
-        memcpy(full_config_descriptor, &descriptor, sizeof(descriptor));
-        memcpy(full_config_descriptor + sizeof(descriptor),
-                        &ohci_rh_iface_descriptor, sizeof(ohci_rh_iface_descriptor));
-        memcpy(full_config_descriptor + sizeof(descriptor) +
-                                sizeof(ohci_rh_iface_descriptor),
-                        &ohci_rh_ep_descriptor, sizeof(ohci_rh_ep_descriptor));
-        memcpy(full_config_descriptor + sizeof(descriptor) +
-                                sizeof(ohci_rh_iface_descriptor) +
-                                sizeof(ohci_rh_ep_descriptor),
-                        hub_descriptor, hub_desc_size);
-        
+                (uint8_t*) malloc(descriptor.total_length);
+        memcpy(full_config_descriptor, &descriptor, sizeof (descriptor));
+        memcpy(full_config_descriptor + sizeof (descriptor),
+                &ohci_rh_iface_descriptor, sizeof (ohci_rh_iface_descriptor));
+        memcpy(full_config_descriptor + sizeof (descriptor) +
+                sizeof (ohci_rh_iface_descriptor),
+                &ohci_rh_ep_descriptor, sizeof (ohci_rh_ep_descriptor));
+        memcpy(full_config_descriptor + sizeof (descriptor) +
+                sizeof (ohci_rh_iface_descriptor) +
+                sizeof (ohci_rh_ep_descriptor),
+                hub_descriptor, hub_desc_size);
+
         instance->descriptors.configuration = full_config_descriptor;
         instance->descriptors.configuration_size = descriptor.total_length;
 }
-
-/** Root hub initialization
- * @return Error code.
- */
-int rh_init(rh_t *instance, ddf_dev_t *dev, ohci_regs_t *regs)
-{
-        assert(instance);
-        //instance->address = -1;
-        instance->registers = regs;
-        instance->device = dev;
-        instance->port_count = instance->registers->rh_desc_a & 0xff;
-        rh_init_descriptors(instance);
-        /// \TODO set port power mode
-
-
-        usb_log_info("OHCI root hub with %d ports.\n", instance->port_count);
-
-        //start generic usb hub driver
-        
-        /* TODO: implement */
-        return EOK;
-}
 /*----------------------------------------------------------------------------*/
 
@@ -272 +361 @@
  */
 static int process_get_port_status_request(rh_t *instance, uint16_t port,
-                usb_transfer_batch_t * request){
-        if(port<1 || port>instance->port_count)
-                return EINVAL;
-        uint32_t * uint32_buffer = (uint32_t*)request->transport_buffer;
+        usb_transfer_batch_t * request) {
+        if (port < 1 || port > instance->port_count)
+                return EINVAL;
+        uint32_t * uint32_buffer = (uint32_t*) request->transport_buffer;
         request->transfered_size = 4;
-        uint32_buffer[0] = instance->registers->rh_port_status[port -1];
+        uint32_buffer[0] = instance->registers->rh_port_status[port - 1];
 #if 0
         int i;
-        for(i=0;i<instance->port_count;++i){
+        for (i = 0; i < instance->port_count; ++i) {
                 usb_log_debug("port status %d,x%x\n",
-                                instance->registers->rh_port_status[i],
-                                instance->registers->rh_port_status[i]);
+                        instance->registers->rh_port_status[i],
+                        instance->registers->rh_port_status[i]);
         }
 #endif
         return EOK;
 }
+/*----------------------------------------------------------------------------*/
 
 /**
@@ -299 +389 @@
  */
 static int process_get_hub_status_request(rh_t *instance,
-                usb_transfer_batch_t * request){
-        uint32_t * uint32_buffer = (uint32_t*)request->transport_buffer;
+        usb_transfer_batch_t * request) {
+        uint32_t * uint32_buffer = (uint32_t*) request->transport_buffer;
         //bits, 0,1,16,17
         request->transfered_size = 4;
-        uint32_t mask = 1 & (1<<1) & (1<<16) & (1<<17);
+        uint32_t mask = 1 & (1 << 1) & (1 << 16) & (1 << 17);
         uint32_buffer[0] = mask & instance->registers->rh_status;
         return EOK;
 }
-
-
+/*----------------------------------------------------------------------------*/
 
 /**
@@ -320 +409 @@
  */
 static int process_get_status_request(rh_t *instance,
-                usb_transfer_batch_t * request)
-{
+        usb_transfer_batch_t * request) {
         size_t buffer_size = request->buffer_size;
         usb_device_request_setup_packet_t * request_packet =
-                        (usb_device_request_setup_packet_t*)
-                        request->setup_buffer;
+                (usb_device_request_setup_packet_t*)
+                request->setup_buffer;
 
         usb_hub_bm_request_type_t request_type = request_packet->request_type;
-        if(buffer_size<4/*request_packet->length*/){///\TODO
+        if (buffer_size < 4/*request_packet->length*/) {///\TODO
                 usb_log_warning("requested more data than buffer size\n");
                 return EINVAL;
         }
 
-        if(request_type == USB_HUB_REQ_TYPE_GET_HUB_STATUS)
+        if (request_type == USB_HUB_REQ_TYPE_GET_HUB_STATUS)
                 return process_get_hub_status_request(instance, request);
-        if(request_type == USB_HUB_REQ_TYPE_GET_PORT_STATUS)
-                return process_get_port_status_request(instance, request_packet->index,
-                                request);
+        if (request_type == USB_HUB_REQ_TYPE_GET_PORT_STATUS)
+                return process_get_port_status_request(instance,
+                request_packet->index,
+                request);
         return ENOTSUP;
 }
+/*----------------------------------------------------------------------------*/
 
 /**
@@ -353 +443 @@
  */
 static void create_interrupt_mask(rh_t *instance, void ** buffer,
-                size_t * buffer_size){
+        size_t * buffer_size) {
         int bit_count = instance->port_count + 1;
-        (*buffer_size) = (bit_count / 8) + ((bit_count%8==0)?0:1);
-        
+        (*buffer_size) = (bit_count / 8) + ((bit_count % 8 == 0) ? 0 : 1);
+
         (*buffer) = malloc(*buffer_size);
-        uint8_t * bitmap = (uint8_t*)(*buffer);
-        uint32_t mask = (1<<(USB_HUB_FEATURE_C_HUB_LOCAL_POWER+16))
-                        | (1<<(USB_HUB_FEATURE_C_HUB_OVER_CURRENT+16));
-        bzero(bitmap,(*buffer_size));
-        if(instance->registers->rh_status & mask){
+        uint8_t * bitmap = (uint8_t*) (*buffer);
+        uint32_t mask = (1 << (USB_HUB_FEATURE_C_HUB_LOCAL_POWER + 16))
+                | (1 << (USB_HUB_FEATURE_C_HUB_OVER_CURRENT + 16));
+        bzero(bitmap, (*buffer_size));
+        if (instance->registers->rh_status & mask) {
                 bitmap[0] = 1;
         }
@@ -368 +458 @@
         mask = 0;
         int i;
-        for(i=16;i<=20;++i){
-                mask += 1<<i;
-        }
-        for(port = 1; port<=instance->port_count;++port){
-                if(mask & instance->registers->rh_port_status[port-1]){
-                        bitmap[(port)/8] += 1<<(port%8);
-                }
-        }
-}
- 
+        for (i = 16; i <= 20; ++i) {
+                mask += 1 << i;
+        }
+        for (port = 1; port <= instance->port_count; ++port) {
+                if (mask & instance->registers->rh_port_status[port - 1]) {
+                        bitmap[(port) / 8] += 1 << (port % 8);
+                }
+        }
+}
+/*----------------------------------------------------------------------------*/
+
 /**
  * create answer to a descriptor request
@@ -388 +479 @@
  */
 static int process_get_descriptor_request(rh_t *instance,
-                usb_transfer_batch_t *request){
+        usb_transfer_batch_t *request) {
         usb_device_request_setup_packet_t * setup_request =
-                        (usb_device_request_setup_packet_t*)request->setup_buffer;
+                (usb_device_request_setup_packet_t*) request->setup_buffer;
         size_t size;
         const void * result_descriptor = NULL;
         const uint16_t setup_request_value = setup_request->value_high;
-                        //(setup_request->value_low << 8);
+        //(setup_request->value_low << 8);
         bool del = false;
-        switch (setup_request_value)
-        {
-                case USB_DESCTYPE_HUB: {
+        switch (setup_request_value) {
+                case USB_DESCTYPE_HUB:
+                {
                         uint8_t * descriptor;
                         usb_create_serialized_hub_descriptor(
                                 instance, &descriptor, &size);
                         result_descriptor = descriptor;
-                        if(result_descriptor) del = true;
+                        if (result_descriptor) del = true;
                         break;
                 }
-                case USB_DESCTYPE_DEVICE: {
+                case USB_DESCTYPE_DEVICE:
+                {
                         usb_log_debug("USB_DESCTYPE_DEVICE\n");
                         result_descriptor = &ohci_rh_device_descriptor;
-                        size = sizeof(ohci_rh_device_descriptor);
+                        size = sizeof (ohci_rh_device_descriptor);
                         break;
                 }
-                case USB_DESCTYPE_CONFIGURATION: {
+                case USB_DESCTYPE_CONFIGURATION:
+                {
                         usb_log_debug("USB_DESCTYPE_CONFIGURATION\n");
                         result_descriptor = instance->descriptors.configuration;
@@ -418 +511 @@
                         break;
                 }
-                case USB_DESCTYPE_INTERFACE: {
+                case USB_DESCTYPE_INTERFACE:
+                {
                         usb_log_debug("USB_DESCTYPE_INTERFACE\n");
                         result_descriptor = &ohci_rh_iface_descriptor;
-                        size = sizeof(ohci_rh_iface_descriptor);
+                        size = sizeof (ohci_rh_iface_descriptor);
                         break;
                 }
-                case USB_DESCTYPE_ENDPOINT: {
+                case USB_DESCTYPE_ENDPOINT:
+                {
                         usb_log_debug("USB_DESCTYPE_ENDPOINT\n");
                         result_descriptor = &ohci_rh_ep_descriptor;
-                        size = sizeof(ohci_rh_ep_descriptor);
+                        size = sizeof (ohci_rh_ep_descriptor);
                         break;
                 }
-                default: {
-                        usb_log_debug("USB_DESCTYPE_EINVAL %d \n",setup_request->value);
-                        usb_log_debug("\ttype %d\n\trequest %d\n\tvalue %d\n\tindex %d\n\tlen %d\n ",
-                                        setup_request->request_type,
-                                        setup_request->request,
-                                        setup_request_value,
-                                        setup_request->index,
-                                        setup_request->length
-                                        );
+                default:
+                {
+                        usb_log_debug("USB_DESCTYPE_EINVAL %d \n",
+                                setup_request->value);
+                        usb_log_debug("\ttype %d\n\trequest %d\n\tvalue "
+                                "%d\n\tindex %d\n\tlen %d\n ",
+                                setup_request->request_type,
+                                setup_request->request,
+                                setup_request_value,
+                                setup_request->index,
+                                setup_request->length
+                                );
                         return EINVAL;
                 }
         }
-        if(request->buffer_size < size){
+        if (request->buffer_size < size) {
                 size = request->buffer_size;
         }
         request->transfered_size = size;
-        memcpy(request->transport_buffer,result_descriptor,size);
+        memcpy(request->transport_buffer, result_descriptor, size);
         if (del)
                 free(result_descriptor);
         return EOK;
 }
+/*----------------------------------------------------------------------------*/
 
 /**
@@ -460 +559 @@
  * @return error code
  */
-static int process_get_configuration_request(rh_t *instance, 
-                usb_transfer_batch_t *request){
+static int process_get_configuration_request(rh_t *instance,
+        usb_transfer_batch_t *request) {
         //set and get configuration requests do not have any meaning, only dummy
         //values are returned
-        if(request->buffer_size != 1)
+        if (request->buffer_size != 1)
                 return EINVAL;
         request->transport_buffer[0] = 1;
@@ -470 +569 @@
         return EOK;
 }
+/*----------------------------------------------------------------------------*/
 
 /**
  * process feature-enabling request on hub
- * 
+ *
  * @param instance root hub instance
  * @param feature feature selector
@@ -479 +579 @@
  */
 static int process_hub_feature_set_request(rh_t *instance,
-                uint16_t feature){
-        if(! ((1<<feature) & hub_set_feature_valid_mask))
+        uint16_t feature) {
+        if (!((1 << feature) & hub_set_feature_valid_mask))
                 return EINVAL;
         instance->registers->rh_status =
-                        (instance->registers->rh_status | (1<<feature))
-                        & (~ hub_clear_feature_by_writing_one_mask);
-        return EOK;
-}
+                (instance->registers->rh_status | (1 << feature))
+                & (~hub_clear_feature_by_writing_one_mask);
+        return EOK;
+}
+/*----------------------------------------------------------------------------*/
 
 /**
@@ -496 +597 @@
  */
 static int process_hub_feature_clear_request(rh_t *instance,
-                uint16_t feature){
-        if(! ((1<<feature) & hub_clear_feature_valid_mask))
+        uint16_t feature) {
+        if (!((1 << feature) & hub_clear_feature_valid_mask))
                 return EINVAL;
         //is the feature cleared directly?
-        if ((1<<feature) & hub_set_feature_direct_mask){
+        if ((1 << feature) & hub_set_feature_direct_mask) {
                 instance->registers->rh_status =
-                        (instance->registers->rh_status & (~(1<<feature)))
-                        & (~ hub_clear_feature_by_writing_one_mask);
-        }else{//the feature is cleared by writing '1'
+                        (instance->registers->rh_status & (~(1 << feature)))
+                        & (~hub_clear_feature_by_writing_one_mask);
+        } else {//the feature is cleared by writing '1'
                 instance->registers->rh_status =
-                                (instance->registers->rh_status
-                                & (~ hub_clear_feature_by_writing_one_mask))
-                                | (1<<feature);
-        }
-        return EOK;
-}
-
-
+                        (instance->registers->rh_status
+                        & (~hub_clear_feature_by_writing_one_mask))
+                        | (1 << feature);
+        }
+        return EOK;
+}
+/*----------------------------------------------------------------------------*/
 
 /**
  * process feature-enabling request on hub
- * 
+ *
  * @param instance root hub instance
  * @param feature feature selector
@@ -525 +625 @@
  */
 static int process_port_feature_set_request(rh_t *instance,
-                uint16_t feature, uint16_t port){
-        if(!((1<<feature) & port_set_feature_valid_mask))
-                return EINVAL;
-        if(port<1 || port>instance->port_count)
+        uint16_t feature, uint16_t port) {
+        if (!((1 << feature) & port_set_feature_valid_mask))
+                return EINVAL;
+        if (port < 1 || port > instance->port_count)
                 return EINVAL;
         instance->registers->rh_port_status[port - 1] =
-                        (instance->registers->rh_port_status[port - 1] | (1<<feature))
-                        & (~port_clear_feature_valid_mask);
+                (instance->registers->rh_port_status[port - 1] | (1 << feature))
+                & (~port_clear_feature_valid_mask);
         /// \TODO any error?
         return EOK;
 }
+/*----------------------------------------------------------------------------*/
 
 /**
@@ -547 +648 @@
  */
 static int process_port_feature_clear_request(rh_t *instance,
-                uint16_t feature, uint16_t port){
-        if(!((1<<feature) & port_clear_feature_valid_mask))
-                return EINVAL;
-        if(port<1 || port>instance->port_count)
-                return EINVAL;
-        if(feature == USB_HUB_FEATURE_PORT_POWER)
+        uint16_t feature, uint16_t port) {
+        if (!((1 << feature) & port_clear_feature_valid_mask))
+                return EINVAL;
+        if (port < 1 || port > instance->port_count)
+                return EINVAL;
+        if (feature == USB_HUB_FEATURE_PORT_POWER)
                 feature = USB_HUB_FEATURE_PORT_LOW_SPEED;
-        if(feature == USB_HUB_FEATURE_PORT_SUSPEND)
+        if (feature == USB_HUB_FEATURE_PORT_SUSPEND)
                 feature = USB_HUB_FEATURE_PORT_OVER_CURRENT;
         instance->registers->rh_port_status[port - 1] =
-                        (instance->registers->rh_port_status[port - 1] 
-                        & (~port_clear_feature_valid_mask))
-                        | (1<<feature);
+                (instance->registers->rh_port_status[port - 1]
+                & (~port_clear_feature_valid_mask))
+                | (1 << feature);
         /// \TODO any error?
         return EOK;
 }
-
+/*----------------------------------------------------------------------------*/
 
 /**
  * register address to this device
- * 
+ *
  * @param instance root hub instance
  * @param address new address
@@ -573 +674 @@
  */
 static int process_address_set_request(rh_t *instance,
-                uint16_t address){
+        uint16_t address) {
         instance->address = address;
         return EOK;
 }
+/*----------------------------------------------------------------------------*/
 
 /**
@@ -588 +690 @@
  */
 static int process_request_with_output(rh_t *instance,
-                usb_transfer_batch_t *request){
+        usb_transfer_batch_t *request) {
         usb_device_request_setup_packet_t * setup_request =
-                        (usb_device_request_setup_packet_t*)request->setup_buffer;
-        if(setup_request->request == USB_DEVREQ_GET_STATUS){
+                (usb_device_request_setup_packet_t*) request->setup_buffer;
+        if (setup_request->request == USB_DEVREQ_GET_STATUS) {
                 usb_log_debug("USB_DEVREQ_GET_STATUS\n");
                 return process_get_status_request(instance, request);
         }
-        if(setup_request->request == USB_DEVREQ_GET_DESCRIPTOR){
+        if (setup_request->request == USB_DEVREQ_GET_DESCRIPTOR) {
                 usb_log_debug("USB_DEVREQ_GET_DESCRIPTOR\n");
                 return process_get_descriptor_request(instance, request);
         }
-        if(setup_request->request == USB_DEVREQ_GET_CONFIGURATION){
+        if (setup_request->request == USB_DEVREQ_GET_CONFIGURATION) {
                 usb_log_debug("USB_DEVREQ_GET_CONFIGURATION\n");
                 return process_get_configuration_request(instance, request);
@@ -605 +707 @@
         return ENOTSUP;
 }
+/*----------------------------------------------------------------------------*/
 
 /**
@@ -616 +719 @@
  */
 static int process_request_with_input(rh_t *instance,
-                usb_transfer_batch_t *request){
+        usb_transfer_batch_t *request) {
         usb_device_request_setup_packet_t * setup_request =
-                        (usb_device_request_setup_packet_t*)request->setup_buffer;
+                (usb_device_request_setup_packet_t*) request->setup_buffer;
         request->transfered_size = 0;
-        if(setup_request->request == USB_DEVREQ_SET_DESCRIPTOR){
+        if (setup_request->request == USB_DEVREQ_SET_DESCRIPTOR) {
                 return ENOTSUP;
         }
-        if(setup_request->request == USB_DEVREQ_SET_CONFIGURATION){
+        if (setup_request->request == USB_DEVREQ_SET_CONFIGURATION) {
                 //set and get configuration requests do not have any meaning,
                 //only dummy values are returned
@@ -630 +733 @@
         return ENOTSUP;
 }
+/*----------------------------------------------------------------------------*/
 
 /**
@@ -641 +745 @@
  */
 static int process_request_without_data(rh_t *instance,
-                usb_transfer_batch_t *request){
+        usb_transfer_batch_t *request) {
         usb_device_request_setup_packet_t * setup_request =
-                        (usb_device_request_setup_packet_t*)request->setup_buffer;
+                (usb_device_request_setup_packet_t*) request->setup_buffer;
         request->transfered_size = 0;
-        if(setup_request->request == USB_DEVREQ_CLEAR_FEATURE){
-                if(setup_request->request_type == USB_HUB_REQ_TYPE_SET_HUB_FEATURE){
+        if (setup_request->request == USB_DEVREQ_CLEAR_FEATURE) {
+                if (setup_request->request_type == USB_HUB_REQ_TYPE_SET_HUB_FEATURE) {
                         usb_log_debug("USB_HUB_REQ_TYPE_SET_HUB_FEATURE\n");
                         return process_hub_feature_clear_request(instance,
-                                        setup_request->value);
-                }
-                if(setup_request->request_type == USB_HUB_REQ_TYPE_SET_PORT_FEATURE){
+                                setup_request->value);
+                }
+                if (setup_request->request_type == USB_HUB_REQ_TYPE_SET_PORT_FEATURE) {
                         usb_log_debug("USB_HUB_REQ_TYPE_SET_PORT_FEATURE\n");
                         return process_port_feature_clear_request(instance,
-                                        setup_request->value,
-                                        setup_request->index);
+                                setup_request->value,
+                                setup_request->index);
                 }
                 usb_log_debug("USB_HUB_REQ_TYPE_INVALID %d\n",
-                                setup_request->request_type);
-                return EINVAL;
-        }
-        if(setup_request->request == USB_DEVREQ_SET_FEATURE){
-                if(setup_request->request_type == USB_HUB_REQ_TYPE_SET_HUB_FEATURE){
+                        setup_request->request_type);
+                return EINVAL;
+        }
+        if (setup_request->request == USB_DEVREQ_SET_FEATURE) {
+                if (setup_request->request_type == USB_HUB_REQ_TYPE_SET_HUB_FEATURE) {
                         usb_log_debug("USB_HUB_REQ_TYPE_SET_HUB_FEATURE\n");
                         return process_hub_feature_set_request(instance,
-                                        setup_request->value);
-                }
-                if(setup_request->request_type == USB_HUB_REQ_TYPE_SET_PORT_FEATURE){
+                                setup_request->value);
+                }
+                if (setup_request->request_type == USB_HUB_REQ_TYPE_SET_PORT_FEATURE) {
                         usb_log_debug("USB_HUB_REQ_TYPE_SET_PORT_FEATURE\n");
                         return process_port_feature_set_request(instance,
-                                        setup_request->value,
-                                        setup_request->index);
-                }
-                usb_log_debug("USB_HUB_REQ_TYPE_INVALID %d\n",setup_request->request_type);
-                return EINVAL;
-        }
-        if(setup_request->request == USB_DEVREQ_SET_ADDRESS){
+                                setup_request->value,
+                                setup_request->index);
+                }
+                usb_log_debug("USB_HUB_REQ_TYPE_INVALID %d\n",
+                        setup_request->request_type);
+                return EINVAL;
+        }
+        if (setup_request->request == USB_DEVREQ_SET_ADDRESS) {
                 usb_log_debug("USB_DEVREQ_SET_ADDRESS\n");
-                return process_address_set_request(instance, setup_request->value);
-        }
-        usb_log_debug("USB_DEVREQ_SET_ENOTSUP %d\n",setup_request->request_type);
+                return process_address_set_request(instance,
+                        setup_request->value);
+        }
+        usb_log_debug("USB_DEVREQ_SET_ENOTSUP %d\n",
+                setup_request->request_type);
         return ENOTSUP;
 }
+/*----------------------------------------------------------------------------*/
 
 /**
@@ -702 +810 @@
  * @return error code
  */
-static int process_ctrl_request(rh_t *instance, usb_transfer_batch_t *request){
+static int process_ctrl_request(rh_t *instance, usb_transfer_batch_t *request) {
+        if (!request->setup_buffer) {
+                usb_log_error("root hub received empty transaction?");
+                return EINVAL;
+        }
         int opResult;
-        if (request->setup_buffer) {
-                if(sizeof(usb_device_request_setup_packet_t)>request->setup_size){
-                        usb_log_error("setup packet too small\n");
-                        return EINVAL;
-                }
-                usb_log_info("CTRL packet: %s.\n",
-                        usb_debug_str_buffer((const uint8_t *)request->setup_buffer, 8, 8));
-                usb_device_request_setup_packet_t * setup_request =
-                                (usb_device_request_setup_packet_t*)request->setup_buffer;
-                if(
-                        setup_request->request == USB_DEVREQ_GET_STATUS
-                        || setup_request->request == USB_DEVREQ_GET_DESCRIPTOR
-                        || setup_request->request == USB_DEVREQ_GET_CONFIGURATION
-                ){
+        if (sizeof (usb_device_request_setup_packet_t) > request->setup_size) {
+                usb_log_error("setup packet too small\n");
+                return EINVAL;
+        }
+        usb_log_info("CTRL packet: %s.\n",
+                usb_debug_str_buffer(
+                (const uint8_t *) request->setup_buffer, 8, 8));
+        usb_device_request_setup_packet_t * setup_request =
+                (usb_device_request_setup_packet_t*)
+                request->setup_buffer;
+        switch (setup_request->request) {
+                case USB_DEVREQ_GET_STATUS:
+                case USB_DEVREQ_GET_DESCRIPTOR:
+                case USB_DEVREQ_GET_CONFIGURATION:
                         usb_log_debug("processing request with output\n");
-                        opResult = process_request_with_output(instance,request);
-                }else if(
-                        setup_request->request == USB_DEVREQ_CLEAR_FEATURE
-                        || setup_request->request == USB_DEVREQ_SET_FEATURE
-                        || setup_request->request == USB_DEVREQ_SET_ADDRESS
-                ){
-                        usb_log_debug("processing request without additional data\n");
-                        opResult = process_request_without_data(instance,request);
-                }else if(setup_request->request == USB_DEVREQ_SET_DESCRIPTOR
-                                || setup_request->request == USB_DEVREQ_SET_CONFIGURATION
-                ){
-                        usb_log_debug("processing request with input\n");
-                        opResult = process_request_with_input(instance,request);
-                }else{
-                        usb_log_warning("received unsuported request: %d\n",
-                                        setup_request->request
-                                        );
+                        opResult = process_request_with_output(
+                                instance, request);
+                        break;
+                case USB_DEVREQ_CLEAR_FEATURE:
+                case USB_DEVREQ_SET_FEATURE:
+                case USB_DEVREQ_SET_ADDRESS:
+                        usb_log_debug("processing request without "
+                                "additional data\n");
+                        opResult = process_request_without_data(
+                                instance, request);
+                        break;
+                case USB_DEVREQ_SET_DESCRIPTOR:
+                case USB_DEVREQ_SET_CONFIGURATION:
+                        usb_log_debug("processing request with "
+                                "input\n");
+                        opResult = process_request_with_input(
+                                instance, request);
+                        break;
+                default:
+                        usb_log_warning("received unsuported request: "
+                                "%d\n",
+                                setup_request->request
+                                );
                         opResult = ENOTSUP;
-                }
-        }else{
-                usb_log_error("root hub received empty transaction?");
-                opResult = EINVAL;
         }
         return opResult;
 }
 
-/**
- * process root hub request
- *
- * @param instance root hub instance
- * @param request structure containing both request and response information
- * @return error code
- */
-int rh_request(rh_t *instance, usb_transfer_batch_t *request)
-{
-        assert(instance);
-        assert(request);
-        int opResult;
-        if(request->transfer_type == USB_TRANSFER_CONTROL){
-                usb_log_info("Root hub got CONTROL packet\n");
-                opResult = process_ctrl_request(instance,request);
-        }else if(request->transfer_type == USB_TRANSFER_INTERRUPT){
-                usb_log_info("Root hub got INTERRUPT packet\n");
-                void * buffer;
-                create_interrupt_mask(instance, &buffer,
-                        &(request->transfered_size));
-                memcpy(request->transport_buffer,buffer, request->transfered_size);
-                opResult = EOK;
-        }else{
-                opResult = EINVAL;
-        }
-        usb_transfer_batch_finish(request, opResult);
-        return EOK;
-}
-/*----------------------------------------------------------------------------*/
-
-
-void rh_interrupt(rh_t *instance)
-{
-        usb_log_info("Whoa whoa wait, I`m not supposed to receive any interrupts, am I?\n");
-        /* TODO: implement? */
-}
+
+
+
 /**
  * @}

uspace/drv/usbhub/usbhub.c

@@ -55 +55 @@
 
 static int usb_hub_init_add_device(usb_hub_info_t * hub, uint16_t port,
-                usb_speed_t speed);
+        usb_speed_t speed);
 
 static int usb_hub_trigger_connecting_non_removable_devices(
-                usb_hub_info_t * hub, usb_hub_descriptor_t * descriptor);
+        usb_hub_info_t * hub, usb_hub_descriptor_t * descriptor);
 
 /**
@@ -69 +69 @@
  * @return zero
  */
-int usb_hub_control_loop(void * hub_info_param){
-        usb_hub_info_t * hub_info = (usb_hub_info_t*)hub_info_param;
+int usb_hub_control_loop(void * hub_info_param) {
+        usb_hub_info_t * hub_info = (usb_hub_info_t*) hub_info_param;
         int errorCode = EOK;
 
-        while(errorCode == EOK){
-                async_usleep(1000 * 1000 * 10 );/// \TODO proper number once
+        while (errorCode == EOK) {
+                async_usleep(1000 * 1000 * 10); /// \TODO proper number once
                 errorCode = usb_hub_check_hub_changes(hub_info);
-                
-        }
-        usb_log_error("something in ctrl loop went wrong, errno %d\n",errorCode);
+
+        }
+        usb_log_error("something in ctrl loop went wrong, errno %d\n",
+                errorCode);
 
         return 0;
@@ -99 +100 @@
 static usb_hub_info_t * usb_hub_info_create(usb_device_t * usb_dev) {
         usb_hub_info_t * result = usb_new(usb_hub_info_t);
-        if(!result) return NULL;
+        if (!result) return NULL;
         result->usb_device = usb_dev;
         result->status_change_pipe = usb_dev->pipes[0].pipe;
@@ -117 +118 @@
  * @return error code
  */
-static int usb_hub_process_hub_specific_info(usb_hub_info_t * hub_info){
+static int usb_hub_process_hub_specific_info(usb_hub_info_t * hub_info) {
         // get hub descriptor
         usb_log_debug("creating serialized descriptor\n");
@@ -128 +129 @@
          */
         int opResult = usb_request_set_configuration(hub_info->control_pipe,
-                        1);
-        if(opResult!=EOK){
-                usb_log_error("could not set default configuration, errno %d",opResult);
-                return opResult;
-        }
-         
-         
+                1);
+        if (opResult != EOK) {
+                usb_log_error("could not set default configuration, errno %d",
+                        opResult);
+                return opResult;
+        }
+
+
         size_t received_size;
         opResult = usb_request_get_descriptor(&hub_info->usb_device->ctrl_pipe,
-                        USB_REQUEST_TYPE_CLASS, USB_REQUEST_RECIPIENT_DEVICE,
-                        USB_DESCTYPE_HUB,
-                        0, 0, serialized_descriptor,
-                        USB_HUB_MAX_DESCRIPTOR_SIZE, &received_size);
-
-        if (opResult != EOK) {
-                usb_log_error("failed when receiving hub descriptor, badcode = %d\n",
-                                opResult);
+                USB_REQUEST_TYPE_CLASS, USB_REQUEST_RECIPIENT_DEVICE,
+                USB_DESCTYPE_HUB,
+                0, 0, serialized_descriptor,
+                USB_HUB_MAX_DESCRIPTOR_SIZE, &received_size);
+
+        if (opResult != EOK) {
+                usb_log_error("failed when receiving hub descriptor, "
+                        "badcode = %d\n",
+                        opResult);
                 free(serialized_descriptor);
                 return opResult;
@@ -150 +153 @@
         usb_log_debug2("deserializing descriptor\n");
         descriptor = usb_deserialize_hub_desriptor(serialized_descriptor);
-        if(descriptor==NULL){
+        if (descriptor == NULL) {
                 usb_log_warning("could not deserialize descriptor \n");
                 return opResult;
         }
-        usb_log_debug("setting port count to %d\n",descriptor->ports_count);
+        usb_log_debug("setting port count to %d\n", descriptor->ports_count);
         hub_info->port_count = descriptor->ports_count;
         hub_info->attached_devs = (usb_hc_attached_device_t*)
-            malloc((hub_info->port_count+1) * sizeof(usb_hc_attached_device_t));
+                malloc((hub_info->port_count + 1) *
+                        sizeof (usb_hc_attached_device_t)
+                );
         int i;
-        for(i=0;i<hub_info->port_count+1;++i){
-                hub_info->attached_devs[i].handle=0;
-                hub_info->attached_devs[i].address=0;
+        for (i = 0; i < hub_info->port_count + 1; ++i) {
+                hub_info->attached_devs[i].handle = 0;
+                hub_info->attached_devs[i].address = 0;
         }
         //handle non-removable devices
@@ -169 +174 @@
         hub_info->descriptor = descriptor;
         hub_info->not_initialized_non_removables =
-                (uint8_t*)malloc((hub_info->port_count+8)/8);
+                (uint8_t*) malloc((hub_info->port_count + 8) / 8);
         memcpy(hub_info->not_initialized_non_removables,
                 descriptor->devices_removable,
-                (hub_info->port_count+8)/8
+                (hub_info->port_count + 8) / 8
                 );
 
@@ -179 +184 @@
         return EOK;
 }
+
 /**
  * Set configuration of hub
@@ -187 +193 @@
  * @return error code
  */
-static int usb_hub_set_configuration(usb_hub_info_t * hub_info){
+static int usb_hub_set_configuration(usb_hub_info_t * hub_info) {
         //device descriptor
         usb_standard_device_descriptor_t *std_descriptor
-            = &hub_info->usb_device->descriptors.device;
+                = &hub_info->usb_device->descriptors.device;
         usb_log_debug("hub has %d configurations\n",
-            std_descriptor->configuration_count);
-        if(std_descriptor->configuration_count<1){
+                std_descriptor->configuration_count);
+        if (std_descriptor->configuration_count < 1) {
                 usb_log_error("there are no configurations available\n");
                 return EINVAL;
@@ -199 +205 @@
 
         usb_standard_configuration_descriptor_t *config_descriptor
-            = (usb_standard_configuration_descriptor_t *)
-            hub_info->usb_device->descriptors.configuration;
+                = (usb_standard_configuration_descriptor_t *)
+                hub_info->usb_device->descriptors.configuration;
 
         /* Set configuration. */
         int opResult = usb_request_set_configuration(
-            &hub_info->usb_device->ctrl_pipe,
-            config_descriptor->configuration_number);
+                &hub_info->usb_device->ctrl_pipe,
+                config_descriptor->configuration_number);
 
         if (opResult != EOK) {
                 usb_log_error("Failed to set hub configuration: %s.\n",
-                    str_error(opResult));
+                        str_error(opResult));
                 return opResult;
         }
         usb_log_debug("\tused configuration %d\n",
-                        config_descriptor->configuration_number);
+                config_descriptor->configuration_number);
 
         return EOK;
@@ -226 +232 @@
  * @return error code
  */
-int usb_hub_add_device(usb_device_t * usb_dev){
-        if(!usb_dev) return EINVAL;
+int usb_hub_add_device(usb_device_t * usb_dev) {
+        if (!usb_dev) return EINVAL;
         usb_hub_info_t * hub_info = usb_hub_info_create(usb_dev);
         //create hc connection
         usb_log_debug("Initializing USB wire abstraction.\n");
         int opResult = usb_hc_connection_initialize_from_device(
-                        &hub_info->connection,
-                        hub_info->usb_device->ddf_dev);
-        if(opResult != EOK){
-                usb_log_error("could not initialize connection to device, errno %d\n",
-                                opResult);
+                &hub_info->connection,
+                hub_info->usb_device->ddf_dev);
+        if (opResult != EOK) {
+                usb_log_error("could not initialize connection to device, "
+                        "errno %d\n",
+                        opResult);
                 free(hub_info);
                 return opResult;
         }
-        
+
         usb_pipe_start_session(hub_info->control_pipe);
         //set hub configuration
         opResult = usb_hub_set_configuration(hub_info);
-        if(opResult!=EOK){
-                usb_log_error("could not set hub configuration, errno %d\n",opResult);
+        if (opResult != EOK) {
+                usb_log_error("could not set hub configuration, errno %d\n",
+                        opResult);
                 free(hub_info);
                 return opResult;
@@ -251 +259 @@
         //get port count and create attached_devs
         opResult = usb_hub_process_hub_specific_info(hub_info);
-        if(opResult!=EOK){
-                usb_log_error("could not set hub configuration, errno %d\n",opResult);
+        if (opResult != EOK) {
+                usb_log_error("could not set hub configuration, errno %d\n",
+                        opResult);
                 free(hub_info);
                 return opResult;
@@ -262 +271 @@
         usb_log_debug("Creating `hub' function.\n");
         ddf_fun_t *hub_fun = ddf_fun_create(hub_info->usb_device->ddf_dev,
-                        fun_exposed, "hub");
+                fun_exposed, "hub");
         assert(hub_fun != NULL);
         hub_fun->ops = NULL;
@@ -274 +283 @@
         fid_t fid = fibril_create(usb_hub_control_loop, hub_info);
         if (fid == 0) {
-                usb_log_error("failed to start monitoring fibril for new hub.\n");
+                usb_log_error("failed to start monitoring fibril for new"
+                        " hub.\n");
                 return ENOMEM;
         }
@@ -281 +291 @@
 
         usb_log_info("Controlling hub `%s' (%d ports).\n",
-            hub_info->usb_device->ddf_dev->name, hub_info->port_count);
+                hub_info->usb_device->ddf_dev->name, hub_info->port_count);
         return EOK;
 }
@@ -302 +312 @@
  */
 static int usb_hub_trigger_connecting_non_removable_devices(
-                usb_hub_info_t * hub,
-                usb_hub_descriptor_t * descriptor)
-{
+        usb_hub_info_t * hub,
+        usb_hub_descriptor_t * descriptor) {
         usb_log_info("attaching non-removable devices(if any)\n");
         //usb_device_request_setup_packet_t request;
@@ -314 +323 @@
 
         opResult = usb_request_set_configuration(hub->control_pipe,
-                        1);
-        if(opResult!=EOK){
-                usb_log_error("could not set default configuration, errno %d",opResult);
+                1);
+        if (opResult != EOK) {
+                usb_log_error("could not set default configuration, errno %d",
+                        opResult);
                 return opResult;
         }
 #if 0
-        for(port=1;port<=descriptor->ports_count;++port){
+        for (port = 1; port <= descriptor->ports_count; ++port) {
                 bool is_non_removable =
-                                ((non_removable_dev_bitmap[port/8]) >> (port%8)) %2;
-                if(is_non_removable){
-                        usb_log_debug("non-removable device on port %d\n",port);
+                        ((non_removable_dev_bitmap[port / 8]) >> (port % 8)) % 2;
+                if (is_non_removable) {
+                        usb_log_debug("non-removable device on port %d\n", port);
                         usb_hub_set_port_status_request(&request, port);
                         opResult = usb_pipe_control_read(
-                                        hub->control_pipe,
-                                        &request, sizeof(usb_device_request_setup_packet_t),
-                                        &status, 4, &rcvd_size
-                                        );
+                                hub->control_pipe,
+                                &request,
+                                sizeof (usb_device_request_setup_packet_t),
+                                &status, 4, &rcvd_size
+                                );
                         if (opResult != EOK) {
-                                usb_log_error("could not get port status of port %d errno:%d\n",
-                                                port, opResult);
+                                usb_log_error("could not get port status of "
+                                        "port %d errno:%d\n",
+                                        port, opResult);
                                 return opResult;
                         }
                         //try to reset port
-                        if(usb_port_dev_connected(&status) || true){
-                                usb_hub_set_enable_port_feature_request(&request, port,
-                                                USB_HUB_FEATURE_PORT_RESET);
+                        if (usb_port_dev_connected(&status) || true) {
+                                usb_hub_set_enable_port_feature_request(
+                                        &request, port,
+                                        USB_HUB_FEATURE_PORT_RESET);
                                 opResult = usb_pipe_control_read(
-                                                hub->control_pipe,
-                                                &request, sizeof(usb_device_request_setup_packet_t),
-                                                &status, 4, &rcvd_size
-                                                );
+                                        hub->control_pipe,
+                                        &request,
+                                        sizeof (usb_device_request_setup_packet_t),
+                                        &status, 4, &rcvd_size
+                                        );
                                 if (opResult != EOK) {
                                         usb_log_warning(
-                                                        "could not reset port %d errno:%d\n",
-                                                        port, opResult);
+                                                "could not reset port %d "
+                                                "errno:%d\n",
+                                                port, opResult);
                                 }
-                                usb_log_debug("port reset, should look like %d,x%x\n",
-                                                (1<<USB_HUB_FEATURE_PORT_RESET),
-                                                (1<<USB_HUB_FEATURE_PORT_RESET)
-                                                );
+                                usb_log_debug("port reset, should look like "
+                                        "%d,x%x\n",
+                                        (1 << USB_HUB_FEATURE_PORT_RESET),
+                                        (1 << USB_HUB_FEATURE_PORT_RESET)
+                                        );
                         }
-                        //set the status change bit, so it will be noticed in driver loop
-                        if(usb_port_dev_connected(&status) && false){
-                                usb_hub_set_disable_port_feature_request(&request, port,
-                                                USB_HUB_FEATURE_PORT_CONNECTION);
+                        //set the status change bit, so it will be noticed
+                        //in driver loop
+                        if (usb_port_dev_connected(&status) && false) {
+                                usb_hub_set_disable_port_feature_request(
+                                        &request, port,
+                                        USB_HUB_FEATURE_PORT_CONNECTION);
                                 opResult = usb_pipe_control_read(
-                                                hub->control_pipe,
-                                                &request, sizeof(usb_device_request_setup_packet_t),
-                                                &status, 4, &rcvd_size
-                                                );
+                                        hub->control_pipe,
+                                        &request,
+                                        sizeof (usb_device_request_setup_packet_t),
+                                        &status, 4, &rcvd_size
+                                        );
                                 if (opResult != EOK) {
                                         usb_log_warning(
-                                                        "could not clear port connection on port %d errno:%d\n",
-                                                        port, opResult);
+                                                "could not clear port "
+                                                "connection on port %d "
+                                                "errno:%d\n",
+                                                port, opResult);
                                 }
                                 usb_log_debug("cleared port connection\n");
-                                usb_hub_set_enable_port_feature_request(&request, port,
-                                                USB_HUB_FEATURE_PORT_ENABLE);
+                                usb_hub_set_enable_port_feature_request(&request,
+                                        port,
+                                        USB_HUB_FEATURE_PORT_ENABLE);
                                 opResult = usb_pipe_control_read(
-                                                hub->control_pipe,
-                                                &request, sizeof(usb_device_request_setup_packet_t),
-                                                &status, 4, &rcvd_size
-                                                );
+                                        hub->control_pipe,
+                                        &request,
+                                        sizeof (usb_device_request_setup_packet_t),
+                                        &status, 4, &rcvd_size
+                                        );
                                 if (opResult != EOK) {
                                         usb_log_warning(
-                                                        "could not set port enabled on port %d errno:%d\n",
-                                                        port, opResult);
+                                                "could not set port enabled "
+                                                "on port %d errno:%d\n",
+                                                port, opResult);
                                 }
-                                usb_log_debug("port set to enabled - should lead to connection change\n");
+                                usb_log_debug("port set to enabled - "
+                                        "should lead to connection change\n");
                         }
                 }
@@ -389 +414 @@
 
         /// \TODO this is just a debug code
-        for(port=1;port<=descriptor->ports_count;++port){
+        for (port = 1; port <= descriptor->ports_count; ++port) {
                 bool is_non_removable =
-                                ((non_removable_dev_bitmap[port/8]) >> (port%8)) %2;
-                if(is_non_removable){
-                        usb_log_debug("CHECKING port %d is non-removable\n",port);
+                        ((non_removable_dev_bitmap[port / 8]) >> (port % 8)) % 2;
+                if (is_non_removable) {
+                        usb_log_debug("CHECKING port %d is non-removable\n",
+                                port);
                         usb_port_status_t status;
                         size_t rcvd_size;
@@ -401 +427 @@
                         //endpoint 0
                         opResult = usb_pipe_control_read(
-                                        hub->control_pipe,
-                                        &request, sizeof(usb_device_request_setup_packet_t),
-                                        &status, 4, &rcvd_size
-                                        );
+                                hub->control_pipe,
+                                &request,
+                                sizeof (usb_device_request_setup_packet_t),
+                                &status, 4, &rcvd_size
+                                );
                         if (opResult != EOK) {
-                                usb_log_error("could not get port status %d\n",opResult);
+                                usb_log_error("could not get port status %d\n",
+                                        opResult);
                         }
                         if (rcvd_size != sizeof (usb_port_status_t)) {
-                                usb_log_error("received status has incorrect size\n");
+                                usb_log_error("received status has incorrect"
+                                        " size\n");
                         }
                         //something connected/disconnected
@@ -415 +444 @@
                                 usb_log_debug("some connection changed\n");
                         }
-                        usb_log_debug("status: %s\n",usb_debug_str_buffer(
-                                        (uint8_t *)&status,4,4));
+                        usb_log_debug("status: %s\n", usb_debug_str_buffer(
+                                (uint8_t *) & status, 4, 4));
                 }
         }
@@ -422 +451 @@
         return EOK;
 }
-
 
 /**
@@ -432 +460 @@
  * @return error code
  */
-static int usb_hub_release_default_address(usb_hub_info_t * hub){
+static int usb_hub_release_default_address(usb_hub_info_t * hub) {
         int opResult = usb_hc_release_default_address(&hub->connection);
-        if(opResult!=EOK){
-                usb_log_error("could not release default address, errno %d\n",opResult);
+        if (opResult != EOK) {
+                usb_log_error("could not release default address, errno %d\n",
+                        opResult);
                 return opResult;
         }
@@ -450 +479 @@
  */
 static int usb_hub_init_add_device(usb_hub_info_t * hub, uint16_t port,
-                usb_speed_t speed) {
+        usb_speed_t speed) {
         //if this hub already uses default address, it cannot request it once more
-        if(hub->is_default_address_used) return EREFUSED;
+        if (hub->is_default_address_used) return EREFUSED;
         usb_log_debug("some connection changed\n");
         assert(hub->control_pipe->hc_phone);
         int opResult = usb_hub_clear_port_feature(hub->control_pipe,
-                                port, USB_HUB_FEATURE_C_PORT_CONNECTION);
-        if(opResult != EOK){
+                port, USB_HUB_FEATURE_C_PORT_CONNECTION);
+        if (opResult != EOK) {
                 usb_log_warning("could not clear port-change-connection flag\n");
         }
         usb_device_request_setup_packet_t request;
-        
+
         //get default address
         opResult = usb_hc_reserve_default_address(&hub->connection, speed);
-        
-        if (opResult != EOK) {
-                usb_log_warning("cannot assign default address, it is probably used %d\n",
-                                opResult);
+
+        if (opResult != EOK) {
+                usb_log_warning("cannot assign default address, it is probably "
+                        "used %d\n",
+                        opResult);
                 return opResult;
         }
@@ -474 +504 @@
         usb_hub_set_reset_port_request(&request, port);
         opResult = usb_pipe_control_write(
-                        hub->control_pipe,
-                        &request,sizeof(usb_device_request_setup_packet_t),
-                        NULL, 0
-                        );
-        if (opResult != EOK) {
-                usb_log_error("something went wrong when reseting a port %d\n",opResult);
+                hub->control_pipe,
+                &request, sizeof (usb_device_request_setup_packet_t),
+                NULL, 0
+                );
+        if (opResult != EOK) {
+                usb_log_error("something went wrong when reseting a port %d\n",
+                        opResult);
                 usb_hub_release_default_address(hub);
         }
@@ -493 +524 @@
  * @param speed transfer speed of attached device, one of low, full or high
  */
-static void usb_hub_finalize_add_device( usb_hub_info_t * hub,
-                uint16_t port, usb_speed_t speed) {
+static void usb_hub_finalize_add_device(usb_hub_info_t * hub,
+        uint16_t port, usb_speed_t speed) {
 
         int opResult;
         usb_log_debug("finalizing add device\n");
         opResult = usb_hub_clear_port_feature(hub->control_pipe,
-            port, USB_HUB_FEATURE_C_PORT_RESET);
+                port, USB_HUB_FEATURE_C_PORT_RESET);
 
         if (opResult != EOK) {
@@ -510 +541 @@
         usb_device_connection_t new_device_connection;
         usb_device_connection_initialize_on_default_address(
-                        &new_device_connection,
-                        &hub->connection
-                        );
+                &new_device_connection,
+                &hub->connection
+                );
         usb_pipe_initialize_default_control(
-                        &new_device_pipe,
-                        &new_device_connection);
+                &new_device_pipe,
+                &new_device_connection);
         usb_pipe_probe_default_control(&new_device_pipe);
 
         /* Request address from host controller. */
         usb_address_t new_device_address = usb_hc_request_address(
-                        &hub->connection,
-                        speed
-                        );
+                &hub->connection,
+                speed
+                );
         if (new_device_address < 0) {
                 usb_log_error("failed to get free USB address\n");
@@ -529 +560 @@
                 return;
         }
-        usb_log_debug("setting new address %d\n",new_device_address);
+        usb_log_debug("setting new address %d\n", new_device_address);
         //opResult = usb_drv_req_set_address(hc, USB_ADDRESS_DEFAULT,
         //    new_device_address);
         usb_pipe_start_session(&new_device_pipe);
-        opResult = usb_request_set_address(&new_device_pipe,new_device_address);
+        opResult = usb_request_set_address(&new_device_pipe,
+                new_device_address);
         usb_pipe_end_session(&new_device_pipe);
         if (opResult != EOK) {
-                usb_log_error("could not set address for new device %d\n",opResult);
+                usb_log_error("could not set address for new device %d\n",
+                        opResult);
                 usb_hub_release_default_address(hub);
                 return;
@@ -543 +576 @@
         //opResult = usb_hub_release_default_address(hc);
         opResult = usb_hub_release_default_address(hub);
-        if(opResult!=EOK){
+        if (opResult != EOK) {
                 return;
         }
@@ -549 +582 @@
         devman_handle_t child_handle;
         //??
-    opResult = usb_device_register_child_in_devman(new_device_address,
-            hub->connection.hc_handle, hub->usb_device->ddf_dev, &child_handle,
-            NULL, NULL, NULL);
-
-        if (opResult != EOK) {
-                usb_log_error("could not start driver for new device %d\n",opResult);
+        opResult = usb_device_register_child_in_devman(new_device_address,
+                hub->connection.hc_handle, hub->usb_device->ddf_dev,
+                &child_handle,
+                NULL, NULL, NULL);
+
+        if (opResult != EOK) {
+                usb_log_error("could not start driver for new device %d\n",
+                        opResult);
                 return;
         }
@@ -562 +597 @@
         //opResult = usb_drv_bind_address(hc, new_device_address, child_handle);
         opResult = usb_hc_register_device(
-                        &hub->connection,
-                        &hub->attached_devs[port]);
-        if (opResult != EOK) {
-                usb_log_error("could not assign address of device in hcd %d\n",opResult);
+                &hub->connection,
+                &hub->attached_devs[port]);
+        if (opResult != EOK) {
+                usb_log_error("could not assign address of device in hcd %d\n",
+                        opResult);
                 return;
         }
         usb_log_info("Detected new device on `%s' (port %d), " \
             "address %d (handle %llu).\n",
-            hub->usb_device->ddf_dev->name, (int) port,
-            new_device_address, child_handle);
+                hub->usb_device->ddf_dev->name, (int) port,
+                new_device_address, child_handle);
 }
 
@@ -584 +620 @@
  */
 static void usb_hub_removed_device(
-    usb_hub_info_t * hub,uint16_t port) {
+        usb_hub_info_t * hub, uint16_t port) {
 
         int opResult = usb_hub_clear_port_feature(hub->control_pipe,
-                                port, USB_HUB_FEATURE_C_PORT_CONNECTION);
-        if(opResult != EOK){
+                port, USB_HUB_FEATURE_C_PORT_CONNECTION);
+        if (opResult != EOK) {
                 usb_log_warning("could not clear port-change-connection flag\n");
         }
@@ -594 +630 @@
          * devide manager
          */
-        
+
         //close address
-        if(hub->attached_devs[port].address!=0){
+        if (hub->attached_devs[port].address != 0) {
                 /*uncomment this code to use it when DDF allows device removal
                 opResult = usb_hc_unregister_device(
-                                &hub->connection, hub->attached_devs[port].address);
+                        &hub->connection,
+                        hub->attached_devs[port].address);
                 if(opResult != EOK) {
-                        dprintf(USB_LOG_LEVEL_WARNING, "could not release address of " \
+                        dprintf(USB_LOG_LEVEL_WARNING, "could not release "
+                                "address of "
                             "removed device: %d", opResult);
                 }
@@ -607 +645 @@
                 hub->attached_devs[port].handle = 0;
                  */
-        }else{
-                usb_log_warning("this is strange, disconnected device had no address\n");
-                //device was disconnected before it`s port was reset - return default address
+        } else {
+                usb_log_warning("this is strange, disconnected device had "
+                        "no address\n");
+                //device was disconnected before it`s port was reset -
+                //return default address
                 usb_hub_release_default_address(hub);
         }
 }
 
-
 /**
  * Process over current condition on port.
- * 
+ *
  * Turn off the power on the port.
  *
@@ -623 +662 @@
  * @param port port number, starting from 1
  */
-static void usb_hub_over_current( usb_hub_info_t * hub,
-                uint16_t port){
+static void usb_hub_over_current(usb_hub_info_t * hub,
+        uint16_t port) {
         int opResult;
         opResult = usb_hub_clear_port_feature(hub->control_pipe,
-            port, USB_HUB_FEATURE_PORT_POWER);
-        if(opResult!=EOK){
+                port, USB_HUB_FEATURE_PORT_POWER);
+        if (opResult != EOK) {
                 usb_log_error("cannot power off port %d;  %d\n",
-                                port, opResult);
+                        port, opResult);
         }
 }
@@ -641 +680 @@
  * @param port port number, starting from 1
  */
-static void usb_hub_process_interrupt(usb_hub_info_t * hub, 
-        uint16_t port) {
+static void usb_hub_process_interrupt(usb_hub_info_t * hub,
+        uint16_t port) {
         usb_log_debug("interrupt at port %d\n", port);
         //determine type of change
         usb_pipe_t *pipe = hub->control_pipe;
-        
+
         int opResult;
 
@@ -657 +696 @@
 
         opResult = usb_pipe_control_read(
-                        pipe,
-                        &request, sizeof(usb_device_request_setup_packet_t),
-                        &status, 4, &rcvd_size
-                        );
+                pipe,
+                &request, sizeof (usb_device_request_setup_packet_t),
+                &status, 4, &rcvd_size
+                );
         if (opResult != EOK) {
                 usb_log_error("could not get port status\n");
@@ -674 +713 @@
                 if (usb_port_dev_connected(&status)) {
                         usb_log_debug("some connection changed\n");
-                        usb_hub_init_add_device(hub, port, usb_port_speed(&status));
+                        usb_hub_init_add_device(hub, port,
+                                usb_port_speed(&status));
                 } else {
                         usb_hub_removed_device(hub, port);
@@ -683 +723 @@
                 //check if it was not auto-resolved
                 usb_log_debug("overcurrent change on port\n");
-                if(usb_port_over_current(&status)){
-                        usb_hub_over_current(hub,port);
-                }else{
-                        usb_log_debug("over current condition was auto-resolved on port %d\n",
-                                        port);
+                if (usb_port_over_current(&status)) {
+                        usb_hub_over_current(hub, port);
+                } else {
+                        usb_log_debug("over current condition was "
+                                "auto-resolved on port %d\n",
+                                port);
                 }
         }
@@ -694 +735 @@
                 usb_log_debug("port reset complete\n");
                 if (usb_port_enabled(&status)) {
-                        usb_hub_finalize_add_device(hub, port, usb_port_speed(&status));
+                        usb_hub_finalize_add_device(hub, port,
+                                usb_port_speed(&status));
                 } else {
-                        usb_log_warning("port reset, but port still not enabled\n");
+                        usb_log_warning("port reset, but port still not "
+                                "enabled\n");
                 }
         }
-        usb_log_debug("status x%x : %d\n ",status,status);
+        usb_log_debug("status x%x : %d\n ", status, status);
 
         usb_port_set_connect_change(&status, false);
@@ -705 +748 @@
         usb_port_set_reset_completed(&status, false);
         usb_port_set_dev_connected(&status, false);
-        if (status>>16) {
+        if (status >> 16) {
                 usb_log_info("there was some unsupported change on port %d: %X\n",
-                                port,status);
-
-        }
-}
-
+                        port, status);
+
+        }
+}
 
 static int initialize_non_removable(usb_hub_info_t * hub_info,
-        unsigned int port){
+        unsigned int port) {
         int opResult;
         usb_log_debug("there is not pluged in non-removable device on "
-                "port %d\n",port
+                "port %d\n", port
                 );
         //usb_hub_init_add_device(hub_info, port, usb_port_speed(&status));
@@ -728 +770 @@
 
         opResult = usb_pipe_control_read(
-                        hub_info->control_pipe,
-                        &request, sizeof(usb_device_request_setup_packet_t),
-                        &status, 4, &rcvd_size
-                        );
-        if (opResult != EOK) {
-                usb_log_error("could not get port status %d\n",opResult);
+                hub_info->control_pipe,
+                &request, sizeof (usb_device_request_setup_packet_t),
+                &status, 4, &rcvd_size
+                );
+        if (opResult != EOK) {
+                usb_log_error("could not get port status %d\n", opResult);
                 return opResult;
         }
@@ -740 +782 @@
                 return opResult;
         }
-        usb_log_debug("port status %d, x%x\n",status,status);
-        if(usb_port_dev_connected(&status)){
+        usb_log_debug("port status %d, x%x\n", status, status);
+        if (usb_port_dev_connected(&status)) {
                 usb_log_debug("there is connected device on this port\n");
         }
-        if(!hub_info->is_default_address_used)
-                usb_hub_init_add_device(hub_info, port, usb_port_speed(&status));
+        if (!hub_info->is_default_address_used)
+                usb_hub_init_add_device(hub_info, port,
+                        usb_port_speed(&status));
         return opResult;
 }
@@ -756 +799 @@
  * @return error code
  */
-int usb_hub_check_hub_changes(usb_hub_info_t * hub_info){
+int usb_hub_check_hub_changes(usb_hub_info_t * hub_info) {
         int opResult;
         opResult = usb_pipe_start_session(
-                        hub_info->status_change_pipe);
-        //this might not be necessary - if all non-removables are ok, it is not needed here
+                hub_info->status_change_pipe);
+        //this might not be necessary - if all non-removables are ok, it is
+        //not needed here
         opResult = usb_pipe_start_session(hub_info->control_pipe);
-        if(opResult != EOK){
+        if (opResult != EOK) {
                 usb_log_error("could not initialize communication for hub; %d\n",
-                                opResult);
+                        opResult);
                 return opResult;
         }
@@ -771 +815 @@
         //first check non-removable devices
         {
-        unsigned int port;
-        for(port = 1; port<=port_count; ++port){
-                bool is_non_removable =
-                        hub_info->not_initialized_non_removables[port/8]
-                        & (1 << (port%8));
-                if(is_non_removable){
-                        opResult = initialize_non_removable(hub_info,port);
+                unsigned int port;
+                for (port = 1; port <= port_count; ++port) {
+                        bool is_non_removable =
+                                hub_info->not_initialized_non_removables[port/8]
+                                & (1 << (port % 8));
+                        if (is_non_removable) {
+                                opResult = initialize_non_removable(hub_info,
+                                        port);
+                        }
                 }
         }
-        }
 
 
         /// FIXME: count properly
-        size_t byte_length = ((port_count+1) / 8) + 1;
-                void *change_bitmap = malloc(byte_length);
+        size_t byte_length = ((port_count + 1) / 8) + 1;
+        void *change_bitmap = malloc(byte_length);
         size_t actual_size;
 
@@ -792 +837 @@
          */
         opResult = usb_pipe_read(
-                        hub_info->status_change_pipe,
-                        change_bitmap, byte_length, &actual_size
-                        );
+                hub_info->status_change_pipe,
+                change_bitmap, byte_length, &actual_size
+                );
 
         if (opResult != EOK) {
                 free(change_bitmap);
-                usb_log_warning("something went wrong while getting status of hub\n");
+                usb_log_warning("something went wrong while getting the"
+                        "status of hub\n");
                 usb_pipe_end_session(hub_info->status_change_pipe);
                 return opResult;
         }
         unsigned int port;
-        
-        if(opResult!=EOK){
-                usb_log_error("could not start control pipe session %d\n", opResult);
+
+        if (opResult != EOK) {
+                usb_log_error("could not start control pipe session %d\n",
+                        opResult);
                 usb_pipe_end_session(hub_info->status_change_pipe);
                 return opResult;
         }
         opResult = usb_hc_connection_open(&hub_info->connection);
-        if(opResult!=EOK){
+        if (opResult != EOK) {
                 usb_log_error("could not start host controller session %d\n",
-                                opResult);
+                        opResult);
                 usb_pipe_end_session(hub_info->control_pipe);
                 usb_pipe_end_session(hub_info->status_change_pipe);
@@ -819 +866 @@
 
         ///todo, opresult check, pre obe konekce
-        for (port = 1; port < port_count+1; ++port) {
+        for (port = 1; port < port_count + 1; ++port) {
                 bool interrupt =
-                                (((uint8_t*) change_bitmap)[port / 8] >> (port % 8)) % 2;
+                        (((uint8_t*) change_bitmap)[port / 8] >> (port % 8)) % 2;
                 if (interrupt) {
                         usb_hub_process_interrupt(
-                                hub_info, port);
+                                hub_info, port);
                 }
         }

uspace/drv/usbhub/usbhub.h

@@ -48 +48 @@
 #include <usb/devdrv.h>
 
-
 /** Information about attached hub. */
 typedef struct {
@@ -56 +55 @@
         /** attached device handles, for each port one */
         usb_hc_attached_device_t * attached_devs;
-        
+
         /** connection to hcd */
         usb_hc_connection_t connection;