SetFeature
This function sends a SET_FEATURE request to a USB device.
Syntax
USB_TRANSFER SetFeature( USB_HANDLE hDevice, LPTRANSFER_NOTIFY_ROUTINE lpStartAddress,
LPVOID lpvNotifyParameter, DWORD dwFlags, WORD wFeature,
UCHAR bIndex );
Parameters
- hDevice
- [IN] Handle to a USB device.
- lpStartAddress
- [IN] Pointer to the address, which may be NULL, of a callback routine.
- lpvNotifyParameter
- [IN] Pointer to the parameter to pass to a callback routine.
- dwFlags
- [IN] Specifies USB_NO_WAIT or 0, plus one of the following:
- USB_SEND_TO_DEVICE
- Request for device.
- USB_SEND_TO_INTERFACE
- Request for interface.
- USB_SEND_TO_ENDPOINT
- Request for endpoint ( default ).
- wFeature
- [IN] Specifies one of the USB_FEATURE_* values, declared in the USB 100.h header file.
- bIndex
- [IN] Specifies 0 for DEVICE, or interface/endpoint number.
Return Values
A USB_TRANSFER handle indicates success. NULL indicates failure.
Remarks
This function initiates a control transfer to a USB device, requesting that a specified feature be enabled.
This function is defined in the Mousedrv.cpp file.
See Also
AbortTransfer, ClearFeature, GetTransferStatus, IsTransferComplete