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Add new USB_Host_GetDeviceStringDescriptor() convenience function.

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This commit is contained in:
Dean Camera 2009-12-06 13:37:30 +00:00
parent c49bdcb7c9
commit c1fa230618
3 changed files with 33 additions and 0 deletions
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16
LUFA/Drivers/USB/LowLevel/Host.c
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@ -308,6 +308,22 @@ uint8_t USB_Host_GetDeviceDescriptor(void* const DeviceDescriptorPtr)
return USB_Host_SendControlRequest(DeviceDescriptorPtr);
}
uint8_t USB_Host_GetDeviceStringDescriptor(uint8_t Index, void* const Buffer, uint8_t BufferLength)
{
USB_ControlRequest = (USB_Request_Header_t)
{
bmRequestType: (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),
bRequest: REQ_GetDescriptor,
wValue: (DTYPE_String << 8) | Index,
wIndex: 0,
wLength: BufferLength,
};
Pipe_SelectPipe(PIPE_CONTROLPIPE);
return USB_Host_SendControlRequest(Buffer);
}
uint8_t USB_Host_ClearPipeStall(uint8_t EndpointNum)
{
if (Pipe_GetPipeToken() == PIPE_TOKEN_IN)