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This function sends a SYNC_FRAME request to a USB device.
USB_TRANSFER SyncFrame( USB_HANDLE hDevice , LPTRANSFER_NOTIFY_ROUTINE lpStartAddress , LPVOID lpvNotifyParameter , DWORD dwFlags , UCHAR bEndpoint , LPWORD lpwFrame );
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 either of the values USB_NO_WAIT or 0.
- bEndpoint
- [IN] Specifies the endpoint number.
- lpwFrame
- [OUT] Specifies the frame 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 the device send a synchronization frame. Isochronous endpoints use synchronization frames to synchronize a data stream.
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, GetTransferStatus, IsTransferComplete
Last updated on Tuesday, July 13, 2004