LPSET_DESCRIPTOR (Windows CE 5.0)
This function sends a SET_DESCRIPTOR request to a universal serial bus (USB) device. It then initiates a control transfer to a USB device, which sets device descriptor information.
typedef USB_TRANSFER (* LPSET_DESCRIPTOR)( USB_HANDLE hDevice, LPTRANSFER_NOTIFY_ROUTINE lpStartAddress, LPVOID lpvNotifyParameter, DWORD dwFlags, UCHAR bType, UCHAR bIndex, WORD wLanguage, WORD wLength, PVOID lpvBuffer);
Parameters
- hDevice
[in] Handle to a USB device. - lpStartAddress
[in] Pointer to the address of a callback routine of type LPTRANSFER_NOTIFY_ROUTINE, which might be NULL. - lpvNotifyParameter
[in] Pointer to the parameter to pass to a callback routine. - dwFlags
[in] Value of USB_NO_WAIT or zero (0). - bType
[in] Descriptor type. Set to USB_DEVICE_DESCRIPTOR_TYPE, USB_CONFIGURATION_DESCRIPTOR_TYPE, USB_STRING_DESCRIPTOR_TYPE, or a vendor specific value. - bIndex
[in] Index within the descriptor. - wLanguage
[in] Language identifier for string descriptors; zero (0) for others. - wLength
[in] Descriptor length. - lpvBuffer
[in] Buffer for descriptor data.
Return Values
A USB_TRANSFER handle indicates success. NULL indicates failure.
Requirements
OS Versions: Windows CE 2.10 and later.
Header: Usbdi.h.
See Also
LPABORT_TRANSFER | LPGET_DESCRIPTOR | LPGET_TRANSFER_STATUS | LPIS_TRANSFER_COMPLETE | LPTRANSFER_NOTIFY_ROUTINE
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