LPISSUE_VENDOR_TRANSFER (Windows CE 5.0)
This function sends a vendor-specific control transfer to a universal serial bus (USB) device.
typedef USB_TRANSFER (* LPISSUE_VENDOR_TRANSFER)( 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 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] Flags for the transfer. These flags shown in the following list are declared in the Usbtypes.h header file.- USB_IN_TRANSFER
- USB_OUT_TRANSFER
- USB_NO_WAIT
- USB_SHORT_TRANSFER_OK
- USB_START_ISOCH_ASAP
- USB_COMPRESS_ISOCH
- USB_SEND_TO_DEVICE
- USB_SEND_TO_INTERFACE
- USB_SEND_TO_ENDPOINT
- USB_DONT_BLOCK_FOR_MEM
- 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] Physical address, which might 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, zero (0). This function is intended for vendor-specific transfers. For standard transfers, use a corresponding function, such as LPGET_INTERFACE or LPSET_INTERFACE.
Requirements
OS Versions: Windows CE 2.10 and later.
Header: Usbdi.h.
See Also
LPABORT_TRANSFER | LPGET_INTERFACE | LPGET_TRANSFER_STATUS | LPIS_TRANSFER_COMPLETE | LPSET_INTERFACE | LPTRANSFER_NOTIFY_ROUTINE
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