Exemplo n.º 1
0
static USB_STATUS usb_class_hid_cntrl_common
   (
      /* [IN] The communication device common command structure */
      HID_COMMAND_PTR         com_ptr,
      /* [IN] Bitmask of the request type */
      uint_8                  bmrequesttype,
      /* [IN] Request code */
      uint_8                  brequest,
      /* [IN] Value to copy into WVALUE field of the REQUEST */
      uint_16                 wvalue,
      /* [IN] Length of the data associated with REQUEST */
      uint_16                 wlength,
      /* [IN] Pointer to data buffer used to send/recv */
      uchar_ptr               data
   )
{ /* Body */
   USB_HID_CLASS_INTF_STRUCT_PTR    if_ptr;
   USB_SETUP                        req;
   USB_STATUS                       status = USBERR_NO_INTERFACE;

   #ifdef _HOST_DEBUG_
      DEBUG_LOG_TRACE("usb_class_hid_cntrl_common");
   #endif
   
   USB_lock();
   /* Validity checking */
   if (usb_host_class_intf_validate(com_ptr->CLASS_PTR)) {
      if_ptr =
         (USB_HID_CLASS_INTF_STRUCT_PTR)com_ptr->CLASS_PTR->class_intf_handle;
      status = usb_hostdev_validate(if_ptr->G.dev_handle);
   } /* Endif */

   if (!status && if_ptr->IN_SETUP) {
      status = USBERR_TRANSFER_IN_PROGRESS;
   } /* Endif */

   if (!status) {
      /* Save the higher level callback and ID */
      if_ptr->USER_CALLBACK = com_ptr->CALLBACK_FN;
      if_ptr->USER_PARAM = com_ptr->CALLBACK_PARAM;

      /* Setup the request */
      req.BMREQUESTTYPE = bmrequesttype;
      req.BREQUEST = brequest;
      *(uint_16*)req.WVALUE = HOST_TO_LE_SHORT(wvalue);
      *(uint_16*)req.WINDEX = HOST_TO_LE_SHORT(((INTERFACE_DESCRIPTOR_PTR)if_ptr->G.intf_handle)->bInterfaceNumber);
      *(uint_16*)req.WLENGTH = HOST_TO_LE_SHORT(wlength);
      status = _usb_hostdev_cntrl_request(if_ptr->G.dev_handle, &req, data,
         usb_class_hid_cntrl_callback, if_ptr);
      if (status == USB_STATUS_TRANSFER_QUEUED) {
         if_ptr->IN_SETUP = TRUE;
      } /* Endif */
   } /* Endif */
   USB_unlock();

   #ifdef _HOST_DEBUG_
      DEBUG_LOG_TRACE("usb_class_hid_cntrl_common, SUCCESSFUL");
   #endif
   return status;
} /* Endbody */
Exemplo n.º 2
0
/*FUNCTION*----------------------------------------------------------------
* 
* Function Name  : _usb_host_ch9_clear_feature
* Returned Value : USB_OK, or error status
* Comments       :
*     Function to process standard device request in Chapter 9.
*     See Table 9-3 p. 250 of USB 2.0 specification.
* 
*END*--------------------------------------------------------------------*/
USB_STATUS  _usb_host_ch9_clear_feature
   (
      /* usb device */
      _usb_device_instance_handle   dev_handle,

      /* request type device/interface/endpoint */
      uint_8                        req_type,

      /* device = 0, or interface/endpoint */
      uint_8                        intf_endpt,

      /* feature selection */
      uint_16                       feature
   )
{ /* Body */

   USB_SETUP  request = req_prototype;
   USB_STATUS error = USB_OK;

   #ifdef _HOST_DEBUG_
         DEBUG_LOG_TRACE("_usb_host_ch9_clear_feature");
   #endif

   USB_lock();
   
   switch (req_type) {
      case REQ_TYPE_DEVICE:
         break;
      case REQ_TYPE_INTERFACE:
      case REQ_TYPE_ENDPOINT:
         *(uint_16*)request.WINDEX = HOST_TO_LE_SHORT(intf_endpt);
         break;
      default:
         USB_unlock();
         #ifdef _HOST_DEBUG_
               DEBUG_LOG_TRACE("_usb_host_ch9_clear_feature, invalid request");
         #endif
         return USB_log_error(__FILE__,__LINE__,USBERR_INVALID_BMREQ_TYPE);
   } /* EndSwitch */

   request.BMREQUESTTYPE = (uchar)(req_type | REQ_TYPE_OUT);
   request.BREQUEST = REQ_CLEAR_FEATURE;
   *(uint_16*)request.WVALUE = HOST_TO_LE_SHORT(feature);

   error = usb_host_ch9_dev_req(dev_handle, &request, NULL);

   USB_unlock();

   #ifdef _HOST_DEBUG_
         DEBUG_LOG_TRACE("_usb_host_ch9_clear_feature, SUCCESSFUL");
   #endif
   return USB_log_error(__FILE__,__LINE__,error);

} /* EndBody */
Exemplo n.º 3
0
/*FUNCTION*----------------------------------------------------------------
* 
* Function Name  : _usb_host_ch9_set_configuration
* Returned Value : USB_OK, or error status
* Comments       :
*     Function to process standard device request in Chapter 9.
*     See Table 9-3 p. 250 of USB 2.0 specification.
* 
*END*--------------------------------------------------------------------*/
USB_STATUS  _usb_host_ch9_set_configuration
   (
      /* usb device */
      _usb_device_instance_handle   dev_handle,

      /* configuration value */
      uint_16                       config
   )
{ /* Body */

   USB_SETUP  request = req_prototype;
   USB_STATUS error = USB_OK;

   #ifdef _HOST_DEBUG_
         DEBUG_LOG_TRACE("_usb_host_ch9_set_configuration");
   #endif

   USB_lock();

   request.BMREQUESTTYPE = REQ_TYPE_DEVICE | REQ_TYPE_OUT;
   request.BREQUEST = REQ_SET_CONFIGURATION;
   *(uint_16*)request.WVALUE = HOST_TO_LE_SHORT(config);

   error = usb_host_ch9_dev_req(dev_handle, &request, NULL);

   USB_unlock();
   
   #ifdef _HOST_DEBUG_
         DEBUG_LOG_TRACE("_usb_host_ch9_set_configuration SUCCESSFUL");
   #endif
   return USB_log_error(__FILE__,__LINE__,error);

} /* EndBody */
Exemplo n.º 4
0
/*FUNCTION*----------------------------------------------------------------
* 
* Function Name  : _usb_host_ch9_set_address
* Returned Value : USB_OK, or error status
* Comments       :
*     Function to process standard device request in Chapter 9.
*     See Table 9-3 p. 250 of USB 2.0 specification.
* 
*END*--------------------------------------------------------------------*/
USB_STATUS  _usb_host_ch9_set_address
   (
      /* usb device */
      _usb_device_instance_handle   dev_handle
   )
{ /* Body */

   DEV_INSTANCE_PTR  dev_ptr = (DEV_INSTANCE_PTR)dev_handle;
   USB_SETUP  request = req_prototype;
   USB_STATUS error = USB_OK;

   #ifdef _HOST_DEBUG_
         DEBUG_LOG_TRACE("_usb_host_ch9_set_address");
   #endif

   USB_lock();

   request.BMREQUESTTYPE = REQ_TYPE_DEVICE | REQ_TYPE_OUT;
   request.BREQUEST = REQ_SET_ADDRESS;
   *(uint_16*)request.WVALUE = HOST_TO_LE_SHORT(dev_ptr->address);

   error = usb_host_ch9_dev_req(dev_handle, &request, NULL);

   USB_unlock();

   #ifdef _HOST_DEBUG_
         DEBUG_LOG_TRACE("_usb_host_ch9_set_address,SUCCESSFUL");
   #endif
   return USB_log_error(__FILE__,__LINE__,error);

} /* EndBody */
Exemplo n.º 5
0
/*FUNCTION*----------------------------------------------------------------
* 
* Function Name  : _usb_host_ch9_set_descriptor
* Returned Value : USB_OK, or error status
* Comments       :
*     Function to process standard device request in Chapter 9.
*     See Table 9-3 p. 250 of USB 2.0 specification.
* 
*END*--------------------------------------------------------------------*/
USB_STATUS  _usb_host_ch9_set_descriptor
   (
      /* usb device */
      _usb_device_instance_handle   dev_handle,

      /* descriptor type & index */
      uint_16           type_index,

      /* Language ID or 0 */
      uint_16           lang_id,

      /* buffer length */
      uint_16           buflen,         

      /* descriptor buffer */
      uchar_ptr         buffer
   )
{ /* Body */

   USB_SETUP  request;
   USB_STATUS error = USB_OK;
   #ifdef _HOST_DEBUG_
         DEBUG_LOG_TRACE("_usb_host_ch9_set_descriptor");
   #endif

   USB_lock();

   request.BMREQUESTTYPE = REQ_TYPE_DEVICE | REQ_TYPE_OUT;
   request.BREQUEST = REQ_SET_DESCRIPTOR;
   *(uint_16*)request.WVALUE = HOST_TO_LE_SHORT(type_index);
   *(uint_16*)request.WINDEX = HOST_TO_LE_SHORT(lang_id);
   *(uint_16*)request.WLENGTH = HOST_TO_LE_SHORT(buflen);

   error = usb_host_ch9_dev_req(dev_handle, &request, buffer);

   USB_unlock();

   #ifdef _HOST_DEBUG_
         DEBUG_LOG_TRACE("_usb_host_ch9_set_descriptor SUCCESSFUL");
   #endif

   return USB_log_error(__FILE__,__LINE__,error);

} /* EndBody */
Exemplo n.º 6
0
/*FUNCTION*----------------------------------------------------------------
* 
* Function Name  : _usb_host_ch9_get_status
* Returned Value : USB_OK, or error status
* Comments       :
*     Function to process standard device request in Chapter 9.
*     See Table 9-3 p. 250 of USB 2.0 specification.
* 
*END*--------------------------------------------------------------------*/
USB_STATUS  _usb_host_ch9_get_status
   (
      /* usb device */
      _usb_device_instance_handle   dev_handle,

      /* request type device/interface/endpoint */
      uint_8            req_type,

      /* device = 0, or interface/endpoint */
      uint_8            intf_endpt,

      /* returned status */
      uchar_ptr         buffer
   )
{ /* Body */

   USB_SETUP  request = req_prototype;
   USB_STATUS error = USB_OK;

   #ifdef _HOST_DEBUG_
         DEBUG_LOG_TRACE("_usb_host_ch9_get_status");
   #endif

   USB_lock();

   switch (req_type) {
      case REQ_TYPE_DEVICE:
      case REQ_TYPE_INTERFACE:
      case REQ_TYPE_ENDPOINT:
         break;
      default:
         USB_unlock();
         #ifdef _HOST_DEBUG_
               DEBUG_LOG_TRACE("_usb_host_ch9_get_status, invalid parameter");
         #endif
         return USB_log_error(__FILE__,__LINE__,USBERR_INVALID_BMREQ_TYPE);
   } /* EndSwitch */

   request.BMREQUESTTYPE = (uchar)(req_type | REQ_TYPE_IN);
   request.BREQUEST = REQ_GET_STATUS;
   *(uint_16*)request.WINDEX = HOST_TO_LE_SHORT(intf_endpt);
   *(uint_16*)request.WLENGTH = HOST_TO_LE_SHORT_CONST(2);

   error = usb_host_ch9_dev_req(dev_handle, &request, buffer);
   USB_unlock();

   #ifdef _HOST_DEBUG_
         DEBUG_LOG_TRACE("_usb_host_ch9_get_status, SUCCESSFUL");
   #endif
   return USB_log_error(__FILE__,__LINE__,error);

} /* EndBody */
Exemplo n.º 7
0
USB_STATUS usb_class_mass_getmaxlun_bulkonly
   (
      CLASS_CALL_STRUCT_PTR      ccs_ptr,
      uint_8_ptr                 pLUN,
      tr_callback                callback
   )
{ /* Body */
   USB_STATUS                       status = USBERR_NO_INTERFACE;
   USB_SETUP                        request;
   USB_MASS_CLASS_INTF_STRUCT_PTR   intf_ptr;

   #ifdef _HOST_DEBUG_
      DEBUG_LOG_TRACE("usb_class_mass_getmaxlun_bulkonly");
   #endif
   
   /* Pointer validity-checking, clear memory, init header */
   USB_lock();
   if (usb_host_class_intf_validate(ccs_ptr)) {
      intf_ptr = (USB_MASS_CLASS_INTF_STRUCT_PTR) ccs_ptr->class_intf_handle;
      status = usb_hostdev_validate(intf_ptr->G.dev_handle);
   } /* Endif */

   if (status) {
      USB_unlock();

      #ifdef _HOST_DEBUG_
         DEBUG_LOG_TRACE("usb_class_mass_getmaxlun_bulkonly, error status");
      #endif
   return USB_log_error(__FILE__,__LINE__,status);
   } /* Endif */

   /* Get the number of logical units on the device */
   request.BMREQUESTTYPE = REQ_TYPE_CLASS | REQ_TYPE_INTERFACE | REQ_TYPE_IN;
   request.BREQUEST = GET_MAX_LUN;
   *(uint_16*)request.WVALUE = HOST_TO_LE_SHORT_CONST(0);
   *(uint_16*)request.WINDEX = HOST_TO_LE_SHORT(((INTERFACE_DESCRIPTOR_PTR)intf_ptr->G.intf_handle)->bInterfaceNumber);
   *(uint_16*)request.WLENGTH = HOST_TO_LE_SHORT_CONST(1);

   /* Send request */
   status = _usb_hostdev_cntrl_request (intf_ptr->G.dev_handle,
      &request, (uchar_ptr)pLUN, callback, NULL);
   USB_unlock();

   #ifdef _HOST_DEBUG_
      DEBUG_LOG_TRACE("usb_class_mass_getmaxlun_bulkonly, SUCCESSFUL");
   #endif
   
   return USB_log_error(__FILE__,__LINE__,status);


} /* Endbody */
Exemplo n.º 8
0
/*FUNCTION*----------------------------------------------------------------
* 
* Function Name  : _usb_host_ch9_set_interface
* Returned Value : USB_OK, or error status
* Comments       :
*     Function to process standard device request in Chapter 9.
*     See Table 9-3 p. 250 of USB 2.0 specification.
* 
*END*--------------------------------------------------------------------*/
USB_STATUS  _usb_host_ch9_set_interface
   (
      /* usb device */
      _usb_device_instance_handle   dev_handle,

      /* alternate setting */
      uint_8            alternate,

      /* interface */
      uint_8            intf
   )
{ /* Body */

   USB_SETUP  request = req_prototype;
   USB_STATUS error = USB_OK;

   #ifdef _HOST_DEBUG_
         DEBUG_LOG_TRACE("_usb_host_ch9_set_interface");
   #endif

   USB_lock();   

   request.BMREQUESTTYPE = REQ_TYPE_INTERFACE | REQ_TYPE_OUT;
   request.BREQUEST = REQ_SET_INTERFACE;
   *(uint_16*)request.WVALUE = HOST_TO_LE_SHORT(alternate);
   *(uint_16*)request.WINDEX = HOST_TO_LE_SHORT(intf);

   error = usb_host_ch9_dev_req(dev_handle, &request, NULL);

   USB_unlock();
   
   #ifdef _HOST_DEBUG_
         DEBUG_LOG_TRACE("_usb_host_ch9_set_interface, SUCCESSFUL");
   #endif
   
   return USB_log_error(__FILE__,__LINE__,error);

} /* EndBody */
Exemplo n.º 9
0
USB_STATUS usb_printer_class_send
   (
      /* [IN] class-interface data pointer + key */
      CLASS_CALL_STRUCT_PTR      cc_ptr,
      
      /* [IN] TR containing setup packet to be sent */
      TR_INIT_PARAM_STRUCT_PTR   tr_ptr
   )
{ /* Body */

   DESCRIPTOR_UNION              desc;
   PRINTER_INTERFACE_STRUCT_PTR  pis_ptr;
   USB_STATUS                    error = USBERR_NO_INTERFACE;
   USB_SETUP_PTR                 dev_req;

   #ifdef _HOST_DEBUG_
      DEBUG_LOG_TRACE("usb_printer_class_send");
   #endif
   
   USB_lock ();
   if (usb_host_class_intf_validate (cc_ptr)) {
      pis_ptr = (PRINTER_INTERFACE_STRUCT_PTR)
         cc_ptr->class_intf_handle;
      desc.pntr = pis_ptr->intf_handle;
      dev_req = (USB_SETUP_PTR)tr_ptr->DEV_REQ_PTR;

      *(uint_16*)dev_req->WVALUE = HOST_TO_LE_SHORT_CONST(0);
      dev_req->WINDEX[0] = desc.intf->bAlternateSetting;
      dev_req->WINDEX[1] = desc.intf->bInterfaceNumber;
      *(uint_16*)dev_req->WLENGTH = HOST_TO_LE_SHORT(tr_ptr->G.RX_LENGTH);
         
      error = _usb_host_send_setup (pis_ptr->host_handle, 
            pis_ptr->control_pipe, 
            tr_ptr);
   } /* EndIf */

   USB_unlock ();

   #ifdef _HOST_DEBUG_
      DEBUG_LOG_TRACE("usb_printer_class_send, SUCCESSFUL");
   #endif
   
   return error;   

} /* Endbody */
Exemplo n.º 10
0
USB_STATUS usb_class_mass_reset_recovery_on_usb
   (
      USB_MASS_CLASS_INTF_STRUCT_PTR   intf_ptr
   )
{ /* Body */
   COMMAND_OBJECT_PTR         cmd_ptr = NULL;
   USB_STATUS                 status = USB_OK;
   USB_SETUP                  request;

   #ifdef _HOST_DEBUG_
      DEBUG_LOG_TRACE("usb_class_mass_reset_recovery_on_usb");
   #endif
   
   /* Nothing can be done if there is nothing pending*/
   usb_class_mass_get_pending_request(intf_ptr,&cmd_ptr);
   if(cmd_ptr == NULL) 
   {
      #ifdef _HOST_DEBUG_
         DEBUG_LOG_TRACE("usb_class_mass_reset_recovery_on_usb,no matching request");
      #endif
      return (USB_STATUS) USB_MASS_NO_MATCHING_REQUEST;
   } /* Endif */

   /* BULK device mass storage reset */
   request.BMREQUESTTYPE   = REQ_TYPE_CLASS | REQ_TYPE_INTERFACE | REQ_TYPE_OUT;
   request.BREQUEST        = MASS_STORAGE_RESET;
   *(uint_16*)request.WVALUE = HOST_TO_LE_SHORT_CONST(0);
   *(uint_16*)request.WINDEX = HOST_TO_LE_SHORT(((INTERFACE_DESCRIPTOR_PTR)intf_ptr->G.intf_handle)->bInterfaceNumber);
   *(uint_16*)request.WLENGTH = HOST_TO_LE_SHORT_CONST(0);

   cmd_ptr->STATUS = STATUS_RESET_DEVICE;
   status = _usb_hostdev_cntrl_request (intf_ptr->G.dev_handle, &request, NULL,
      usb_class_mass_reset_callback, (pointer)intf_ptr);

   #ifdef _HOST_DEBUG_
      DEBUG_LOG_TRACE("usb_class_mass_reset_recovery_on_usb,SUCCESSFUL");
   #endif
      
   return USB_log_error(__FILE__,__LINE__,status);
} /* Endbody */
Exemplo n.º 11
0
/*FUNCTION*----------------------------------------------------------------
* 
* Function Name  : _usb_host_ch9_get_interface
* Returned Value : USB_OK, or error status
* Comments       :
*     Function to process standard device request in Chapter 9.
*     See Table 9-3 p. 250 of USB 2.0 specification.
* 
*END*--------------------------------------------------------------------*/
USB_STATUS  _usb_host_ch9_get_interface
   (
      /* usb device */
      _usb_device_instance_handle   dev_handle,

      /* interface index */
      uint_8            interface,

      /* alternate setting buffer */
      uchar_ptr         buffer
   )
{ /* Body */

   USB_SETUP  request = req_prototype;
   USB_STATUS error = USB_OK;

   #ifdef _HOST_DEBUG_
         DEBUG_LOG_TRACE("_usb_host_ch9_get_interface");
   #endif

   USB_lock();

   request.BMREQUESTTYPE = REQ_TYPE_INTERFACE | REQ_TYPE_IN;
   request.BREQUEST = REQ_GET_INTERFACE;
   *(uint_16*)request.WINDEX = HOST_TO_LE_SHORT(interface);
   *(uint_16*)request.WLENGTH = HOST_TO_LE_SHORT_CONST(1);

   error = usb_host_ch9_dev_req(dev_handle, &request, buffer);

   USB_unlock();

   #ifdef _HOST_DEBUG_
         DEBUG_LOG_TRACE("_usb_host_ch9_get_interface, SUCCESSFUL");
   #endif
   
   return USB_log_error(__FILE__,__LINE__,error);

} /* EndBody */
Exemplo n.º 12
0
/*FUNCTION*----------------------------------------------------------------
* 
* Function Name  : _usb_host_ch9_synch_frame
* Returned Value : USB_OK, or error status
* Comments       :
*     Function to process standard device request in Chapter 9.
*     See Table 9-3 p. 250 of USB 2.0 specification.
* 
*END*--------------------------------------------------------------------*/
USB_STATUS  _usb_host_ch9_synch_frame
   (
      /* usb device */
      _usb_device_instance_handle   dev_handle,

      /* interface index */
      uint_8            interface,

      /* configuration buffer */
      uchar_ptr         buffer
   )
{ /* Body */

   USB_SETUP  request = req_prototype;
   USB_STATUS error = USB_OK;

   #ifdef _HOST_DEBUG_
         DEBUG_LOG_TRACE("_usb_host_ch9_synch_frame");
   #endif

   USB_lock();

   request.BMREQUESTTYPE = REQ_TYPE_ENDPOINT | REQ_TYPE_IN;
   request.BREQUEST = REQ_SYNCH_FRAME;
   *(uint_16*)request.WINDEX = HOST_TO_LE_SHORT(interface);
   *(uint_16*)request.WLENGTH = HOST_TO_LE_SHORT_CONST(2);

   error = usb_host_ch9_dev_req(dev_handle, &request, buffer);

   USB_unlock();

   #ifdef _HOST_DEBUG_
         DEBUG_LOG_TRACE("_usb_host_ch9_synch_frame, SUCCESSFUL");
   #endif
   
   return USB_log_error(__FILE__,__LINE__,error);

} /* EndBody */
Exemplo n.º 13
0
/*FUNCTION*----------------------------------------------------------------
*
* Function Name  : usb_class_audio_cntrl_common
* Returned Value : USB_OK if command has been passed on USB.
* Comments       :
*     This function is used to send a control request.
*     It must be run with USB locked.
*
*END*--------------------------------------------------------------------*/
static USB_STATUS usb_class_audio_cntrl_common
(
    /* [IN] The communication device common command structure */
    AUDIO_COMMAND_PTR           com_ptr,

    /* [IN] The audio control interface */
    //AUDIO_CONTROL_INTERFACE_STRUCT_PTR if_ctrl_ptr,

    /* [IN] Bitmask of the request type */
    uint8_t                    bmrequesttype,

    /* [IN] Request code */
    uint8_t                    brequest,

    /* [IN] Value to copy into WVALUE field of the REQUEST */
    uint16_t                   wvalue,

    /* [IN] Value to copy into WINDEX field of the REQUEST */
    uint16_t                   wIndex,

    /* [IN] Length of the data associated with REQUEST */
    uint16_t                   wlength,

    /* [IN] Pointer to data buffer used to send/recv */
    unsigned char                 *data
)
{ /* Body */
    USB_AUDIO_GENERAL_CLASS_PTR      if_ptr;
    USB_SETUP                        req;
    USB_STATUS                       status = USBERR_NO_INTERFACE;

#ifdef _HOST_DEBUG_
    DEBUG_LOG_TRACE("usb_class_audio_cntrl_common");
#endif

    if_ptr = (USB_AUDIO_GENERAL_CLASS_PTR) com_ptr->CLASS_PTR->class_intf_handle;

    /* Save the higher level callback and ID */
    if_ptr->USER_CALLBACK = com_ptr->CALLBACK_FN;
    if_ptr->USER_PARAM = com_ptr->CALLBACK_PARAM;

    /* Setup the request */
    req.BMREQUESTTYPE = bmrequesttype;
    req.BREQUEST = brequest;

    *(uint16_t*)req.WINDEX = HOST_TO_LE_SHORT(wIndex);
    *(uint16_t*)req.WVALUE = HOST_TO_LE_SHORT(wvalue);
    *(uint16_t*)req.WLENGTH = HOST_TO_LE_SHORT(wlength);


    if (USB_STATUS_TRANSFER_QUEUED == (status = _usb_hostdev_cntrl_request(if_ptr->G.dev_handle, &req, data,
                                       usb_class_audio_cntrl_callback, if_ptr)))
        status = USB_OK;

#ifdef _HOST_DEBUG_
    if (!status)
        DEBUG_LOG_TRACE("usb_class_audio_cntrl_common, SUCCESSFUL");
    else
        DEBUG_LOG_TRACE("usb_class_audio_cntrl_common, FAILED");
#endif

    return status;
} /* Endbody */