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1. Silve play sound using generic microsoft hd audio driver drivers#
2. Silve play sound using generic microsoft hd audio driver driver#
3. Silve play sound using generic microsoft hd audio driver code#

Learn more about: IOCTL_SBAUD_GET_ENDPOINT_DESCRIPTOR IOCTL Learn more about: IOCTL_SBAUD_GET_DEVICE_DESCRIPTOR Learn more about: IOCTL_SBAUD_GET_CONNECTION_STATUS_UPDATE IOCTL The IOCTL_BTHHFP_STREAM_OPEN IOCTL requests an open synchronous connection-oriented (SCO) channel to transmit audio data over the air. The IOCTL_BTHHFP_STREAM_GET_STATUS_UPDATE IOCTL Gets a stream channel status update.

Silve play sound using generic microsoft hd audio driver driver#

The IOCTL_BTHHFP_STREAM_CLOSE IOCTL indicates that the client driver no longer requires the synchronous connection-oriented (SCO) channel for streaming audio. The IOCTL_BTHHFP_SPEAKER_SET_VOLUME IOCTL sets the volume level for the speaker of the Bluetooth device. The IOCTL_BTHHFP_SPEAKER_GET_VOLUME_STATUS_UPDATE IOCTL Gets the volume level setting of the Bluetooth device's speaker. IOCTL_BTHHFP_SPEAKER_GET_VOLUME_STATUS_UPDATE The IOCTL_BTHHFP_MIC_SET_VOLUME IOCTL sets the volume level of the microphone for the Bluetooth device. The IOCTL_BTHHFP_MIC_GET_VOLUME_STATUS_UPDATE IOCTL Gets the volume level setting of the Bluetooth device's microphone. IOCTL_BTHHFP_MIC_GET_VOLUME_STATUS_UPDATE The IOCTL_BTHHFP_DEVICE_REQUEST_DISCONNECT IOCTL removes the Handfree Profile (HFP) Service Level Connection that existed between the audio driver and the Bluetooth device. The IOCTL_BTHHFP_DEVICE_REQUEST_CONNECT IOCTL requests a Handsfree Profile (HFP) Service Level Connection to the Bluetooth device. The IOCTL_BTHHFP_DEVICE_GET_VOLUMEPROPERTYVALUES IOCTL returns KSPROPERTY_VALUES data for the KSPROPERTY_AUDIO_VOLUMELEVEL property. IOCTL_BTHHFP_DEVICE_GET_VOLUMEPROPERTYVALUES The IOCTL_BTHHFP_DEVICE_GET_NRECDISABLE_STATUS_UPDATE IOCTL Gets noise reduction / echo cancellation (NREC) Disable status updates from the remote Bluetooth device. IOCTL_BTHHFP_DEVICE_GET_NRECDISABLE_STATUS_UPDATE The IOCTL_BTHHFP_DEVICE_GET_KSNODETYPES IOCTL Gets the KSNODE types that best describe the Bluetooth device’s input and output.

The IOCTL_BTHHFP_DEVICE_GET_DESCRIPTOR2 IOCTL Gets descriptive information about the paired Handsfree profile (HFP) device.

Silve play sound using generic microsoft hd audio driver code#

The audio driver issues the IOCTL_BTHHFP_DEVICE_GET_DESCRIPTOR control code to get information about an enabled GUID_DEVINTERFACE_BLUETOOTH_HFP_SCO_HCIBYPASS device interface. The IOCTL_BTHHFP_DEVICE_GET_CONTAINERID IOCTL Gets the PnP Container ID of the Bluetooth device. The IOCTL_BTHHFP_DEVICE_GET_CONNECTION_STATUS_UPDATE IOCTL Gets a connection status update. IOCTL_BTHHFP_DEVICE_GET_CONNECTION_STATUS_UPDATE

This helps the audio driver determine the sampling rate for the data. IOCTLsĪn audio driver can send an IOCTL_BTHHFP_DEVICE_GET_CODEC_ID control code to query the Bluetooth driver stack about the codec ID used by the HFP service. To develop Audio drivers, you can use these headers:įor programming information, see Audio Devices Design Guide.

Silve play sound using generic microsoft hd audio driver drivers#

These drivers control audio hardware that render and capture streams containing audio data. These headers are used to create Microsoft Windows Driver Model (WDM) audio drivers.