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This function sends a vendor-specific control transfer to a USB device.
USB_TRANSFER IssueVendorTransfer( USB_HANDLE hDevice , LPTRANSFER_NOTIFY_ROUTINE lpStartAddress , LPVOID lpvNotifyParameter , DWORD dwFlags , LPCUSB_DEVICE_REQUEST lpControlHeader , LPVOID lpvBuffer , ULONG uBufferPhysicalAddress );
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] Flags for the transfer. These are declared in the Usbtypes.h header file.
- lpControlHeader
- [IN] Pointer to a device request header.
- lpvBuffer
- [IN] Data buffer. If a physical buffer address is specified, this must contain the virtual address of the buffer.
- uBufferPhysicalAddress
- [IN] Specifies the physical address, which may be NULL, of the
data buffer.
Return Values
A USB_TRANSFER handle indicates success. NULL indicates failure.
Remarks
This function initiates a control transfer to a USB device on the default endpoint (0). This function is intended for vendor-specific transfers. For standard transfers, use a corresponding function, such as GetInterfaceor SetInterface.
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