Microsoft Windows CE 3.0  

SetFeature

Important:
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This function sends a SET_FEATURE request to a USB device.

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:
Value Description
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.

Requirements

Runs on Versions Defined in Include Link to
Windows CE OS 2.10 and later      
Note   This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.

See Also

AbortTransfer, ClearFeature, GetTransferStatus, IsTransferComplete



 Last updated on Tuesday, July 13, 2004

© 2004 Microsoft Corporation. All rights reserved.