46  * This function will do USB_REQ_GET_PROTOCOL request to set idle period to the usb adk device
57     uinst_t device;  in rt_usbh_adk_get_protocol()  local
62     RT_ASSERT(intf->device != RT_NULL);  in rt_usbh_adk_get_protocol()
64     device = intf->device;  in rt_usbh_adk_get_protocol()
73     if(rt_usb_hcd_control_xfer(device->hcd, device, &setup, (void*)protocol, 2,  in rt_usbh_adk_get_protocol()
79  * This function will do USB_REQ_SEND_STRING request to set idle period to the usb adk device
91     uinst_t device;  in rt_usbh_adk_send_string()  local
96     RT_ASSERT(intf->device != RT_NULL);  in rt_usbh_adk_send_string()
98     device = intf->device;  in rt_usbh_adk_send_string()
107     if(rt_usb_hcd_control_xfer(device->hcd, device, &setup, (void*)str,  in rt_usbh_adk_send_string()
113  * This function will do USB_REQ_START request to set idle period to the usb adk device
124     uinst_t device;  in rt_usbh_adk_start()  local
129     RT_ASSERT(intf->device != RT_NULL);  in rt_usbh_adk_start()
131     device = intf->device;  in rt_usbh_adk_start()
140     if(rt_usb_hcd_control_xfer(device->hcd, device, &setup, RT_NULL, 0,  in rt_usbh_adk_start()
146  * This function will read data from usb adk device
152 static rt_size_t rt_usbh_adk_read(rt_device_t device, rt_off_t pos, void* buffer,  in rt_usbh_adk_read()  argument
160     RT_ASSERT(device != RT_NULL);  in rt_usbh_adk_read()
163     intf = (struct uintf*)device->user_data;  in rt_usbh_adk_read()
166     length = rt_usb_hcd_bulk_xfer(intf->device->hcd, adk->pipe_in,  in rt_usbh_adk_read()
174  * This function will write data to usb adk device
180 static rt_size_t rt_usbh_adk_write (rt_device_t device, rt_off_t pos, const void* buffer,  in rt_usbh_adk_write()  argument
189     intf = (struct uintf*)device->user_data;  in rt_usbh_adk_write()
192     length = rt_usb_hcd_bulk_xfer(intf->device->hcd, adk->pipe_out,  in rt_usbh_adk_write()
211  * This function will run adk class driver when usb device is detected and identified
212  *  as a adk class device, it will continue the enumulate process.
236     dev_desc = &intf->device->dev_desc;  in rt_usbh_adk_enable()
243         RT_DEBUG_LOG(RT_DEBUG_USB, ("found android accessory device\n"));  in rt_usbh_adk_enable()
247         RT_DEBUG_LOG(RT_DEBUG_USB, ("switch device\n"));  in rt_usbh_adk_enable()
317             ret = rt_usb_hcd_alloc_pipe(intf->device->hcd, &adk->pipe_in,  in rt_usbh_adk_enable()
324             ret = rt_usb_hcd_alloc_pipe(intf->device->hcd, &adk->pipe_out,  in rt_usbh_adk_enable()
333         rt_kprintf("pipe error, unsupported device\n");  in rt_usbh_adk_enable()
338     ret = rt_usbh_set_configure(intf->device, 1);  in rt_usbh_adk_enable()
341     /* register adk device */  in rt_usbh_adk_enable()
342     adk->device.type    = RT_Device_Class_Char;  in rt_usbh_adk_enable()
344     adk->device.ops     = &adk_device_ops;  in rt_usbh_adk_enable()
346     adk->device.init    = RT_NULL;  in rt_usbh_adk_enable()
347     adk->device.open    = RT_NULL;  in rt_usbh_adk_enable()
348     adk->device.close   = RT_NULL;  in rt_usbh_adk_enable()
349     adk->device.read    = rt_usbh_adk_read;  in rt_usbh_adk_enable()
350     adk->device.write   = rt_usbh_adk_write;  in rt_usbh_adk_enable()
351     adk->device.control = RT_NULL;  in rt_usbh_adk_enable()
353     adk->device.user_data = (void*)intf;  in rt_usbh_adk_enable()
355     rt_device_register(&adk->device, "adkdev", RT_DEVICE_FLAG_RDWR);  in rt_usbh_adk_enable()
361  * This function will be invoked when usb device plug out is detected and it would clean
385         rt_usb_hcd_free_pipe(intf->device->hcd, adk->pipe_in);  in rt_usbh_adk_disable()
388         rt_usb_hcd_free_pipe(intf->device->hcd, adk->pipe_out);  in rt_usbh_adk_disable()
390     /* unregister adk device */  in rt_usbh_adk_disable()
391     rt_device_unregister(&adk->device);  in rt_usbh_adk_disable()