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IOCTL_USBPRINT_GET_INTERFACE_TYPE IOCTL (usbprint.h)

  • Article

Get the protocol capabilities of the USB printer interface.

Major code

IRP_MJ_DEVICE_CONTROL

Input buffer

NULL

Input buffer length

0

Output buffer

Pointer to a DWORD

Output buffer length

sizeof(DWORD)

Status block

Irp->IoStatus.Status is set to STATUS_SUCCESS if the request is successful. Otherwise, Status to the appropriate error condition as a NTSTATUS code.

For more information, see NTSTATUS Values.

Remarks

IOCTL_USBPRINT_GET_INTERFACE_TYPE returns one of the following values:

Defined constant Value Description
USB_PRINTER_INTERFACE_CLASSIC 1 Has only 7-1-2 alternate config
USB_PRINTER_INTERFACE_IPP 2 Has only 7-1-4 alternate config
USB_PRINTER_INTERFACE_DUAL 3 Has both 7-1-2 and 7-1-4 alternate configs

7-1-2 refers to USB class printer(7), subclass(1), protocol(2==BIDI).

7-1-4 refers to USB class printer(7), subclass(1), protocol(4==IPP over USB).

Requirements

Requirement Value
Header usbprint.h (include Usbprint.h)