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Add new USB_Host_GetDescriptor() function. Alter the USB_Host_GetDeviceDescriptor() and USB_Host_GetDeviceStringDescriptor() convenience functions so that they wrap the new function.

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This commit is contained in:
Dean Camera 2011-11-24 11:46:04 +00:00
parent e915d968a5
commit 3b99abb5fc
3 changed files with 63 additions and 51 deletions
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25
LUFA/Drivers/USB/Core/HostStandardReq.c
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@ -227,31 +227,16 @@ uint8_t USB_Host_GetDeviceConfiguration(uint8_t* const ConfigNumber)
return USB_Host_SendControlRequest(ConfigNumber);
}
uint8_t USB_Host_GetDeviceDescriptor(void* const DeviceDescriptorPtr)
uint8_t USB_Host_GetDescriptor(const uint8_t Type,
const uint8_t Index,
void* const Buffer,
const uint8_t BufferLength)
{
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),
.bRequest = REQ_GetDescriptor,
.wValue = (DTYPE_Device << 8),
.wIndex = 0,
.wLength = sizeof(USB_Descriptor_Device_t),
};
Pipe_SelectPipe(PIPE_CONTROLPIPE);
return USB_Host_SendControlRequest(DeviceDescriptorPtr);
}
uint8_t USB_Host_GetDeviceStringDescriptor(const uint8_t Index,
void* const Buffer,
const uint8_t BufferLength)
{
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),
.bRequest = REQ_GetDescriptor,
.wValue = ((DTYPE_String << 8) | Index),
.wValue = (((uint16_t)Type << 8) | Index),
.wIndex = 0,
.wLength = BufferLength,
};