LPSET_FEATURE (Windows CE 5.0)

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This function sends a SET_FEATURE request to a universal serial bus (USB) device.

typedef USB_TRANSFER (* LPSET_FEATURE)(  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 might be NULL, of a callback routine of type LPTRANSFER_NOTIFY_ROUTINE.
  • lpvNotifyParameter
    [in] Pointer to the parameter to pass to a callback routine.
  • dwFlags
    [in] Value of USB_NO_WAIT or zero (0), and one of the values from the following table.
    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] Values in the following list declared in USB100.h; set to one:
    • USB_FEATURE_ENDPOINT_STALL
    • USB_FEATURE_REMOTE_WAKEUP
    • USB_FEATURE_POWER_D0
    • USB_FEATURE_POWER_D1
    • USB_FEATURE_POWER_D2
    • USB_FEATURE_POWER_D3
  • bIndex
    [in] Value of zero (0) for DEVICE, or the interface or 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

OS Versions: Windows CE 2.10 and later.
Header: Usbdi.h.

See Also

LPABORT_TRANSFER | LPCLEAR_FEATURE | LPGET_TRANSFER_STATUS | LPIS_TRANSFER_COMPLETE | LPTRANSFER_NOTIFY_ROUTINE

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