IOCTL_INTERNAL_USBFN_CONTROL_STATUS_HANDSHAKE_OUT - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
// usbfnioctl.h

// CTL_CODE(0x002a, 0x007, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS)
#define IOCTL_INTERNAL_USBFN_CONTROL_STATUS_HANDSHAKE_OUT 0x002AC01C
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (ni-usbfnioctl-ioctl_internal_usbfn_control_status_handshake_out)

IOCTL_INTERNAL_USBFN_CONTROL_STATUS_HANDSHAKE_OUT IOCTL

Description

The class driver sends this request to send a zero-length control status handshake on endpoint 0 in the OUT direction.

Parameters

Major code

IRP_MJ_INTERNAL_DEVICE_CONTROL

Input buffer

A USBFNPIPEID type value that indicates the pipe ID. The pipe ID of the default control endpoint is 0.

Input buffer length

The size of a USBFNPIPEID type.

Output buffer

NULL.

Output buffer length

None.

Input/output buffer

Input/output buffer length

Status block

If the request is successful, the USB function class extension (UFX) returns STATUS_SUCCESS, or another status value for which NT_SUCCESS(status) equals TRUE. Otherwise it returns a status value for which NT_SUCCESS(status) equals FALSE.

Remarks

This request must be sent after sending the IOCTL_INTERNAL_USBFN_ACTIVATE_USB_BUS request.

UFX forwards this IOCTL request to the transfer queue created for the endpoint by UfxEndpointCreate.

View the official Windows Driver Kit DDI reference

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