// sidebandaudio.h

// CTL_CODE(0x0022, 0x00c, METHOD_NEITHER, FILE_ANY_ACCESS)
#define IOCTL_SBAUD_GET_SIDETONE_STATUS_UPDATE 0x00220033
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Windows Driver Kit DDI reference (ni-sidebandaudio-ioctl_sbaud_get_sidetone_status_update)

IOCTL_SBAUD_GET_SIDETONE_STATUS_UPDATE IOCTL

Description

The IOCTL_SBAUD_GET_SIDETONE_STATUS_UPDATE IOCTL gets the sidetone setting of the sideband audio endpoint. This control code is used by an audio driver when cooperating with the audio class drivers to operate a sideband connection.

Parameters

Major code

IRP_MJ_DEVICE_CONTROL

Input buffer

A SIDEBANDAUDIO_SIDETONE_PARAMS structure structure with the 0 based endpoint index and channel number along with 'immediate' parameter indicating whether to process this IOCTL immediately or pend it for future updates.

Input buffer length

The length of the SIDEBANDAUDIO_SIDETONE_PARAMS structure.

Output buffer

Output buffer length

Input/output buffer

Input/output buffer length

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

This IOCTL can only be called from kernel mode.

Requirements


Header	sidebandaudio.h

IOCTL_SBAUD_GET_SIDETONE_STATUS_UPDATE - NtDoc