Bluetooth AG Service IOCTL Messages (Compact 2013)

3/26/2014

The following table shows the Bluetooth IOCTLs for the Audio Gateway Service with a description of the purpose of each.

Programming element	Description
IOCTL_AG_CLOSE_AUDIO	Closes the currently open audio connection to the headset or the hands-free device.
IOCTL_AG_CLOSE_CONTROL	Closes the currently open service level connection to the Audio Gateway.
IOCTL_AG_GET_MIC_VOL	Retrieves the microphone volume.
IOCTL_AG_GET_SPEAKER_VOL	Retrieves the speaker volume.
IOCTL_AG_OPEN_AUDIO	Opens an audio connection to the headset or the hands-free device.
IOCTL_AG_OPEN_CONTROL	Opens a service level connection to the peer device.
IOCTL_AG_SET_MIC_VOL	Sets the microphone volume.
IOCTL_AG_SET_SPEAKER_VOL	Sets the speaker volume.
IOCTL_AG_SET_USE_HF_AUDIO	Enables the phone application to auto-answer the call by using the hands-free device.
WODM_BT_SCO_AUDIO_CONTROL	Sent by the Audio Gateway Service and received by the waveform output driver to route audio.

See Also