Pattern that matches an unknown ControlCodecStartError member.
Pattern that matches an unknown ControlCodecStopError member.
Pattern that matches an unknown ControlCreateRingBufferError member.
Pattern that matches an unknown ControlCreatorError member.
Pattern that matches an unknown ControlResetError member.
Pattern that matches an unknown ControlSetDaiFormatError member.
Pattern that matches an unknown ControlSetGainError member.
Pattern that matches an unknown DeviceType member.
Pattern that matches an unknown DriverClient member.
Pattern that matches an unknown ObserverGetReferenceClockError member.
Pattern that matches an unknown ObserverWatchGainStateError member.
Pattern that matches an unknown ObserverWatchPlugStateError member.
Pattern that matches an unknown PlugDetectCapabilities member.
Pattern that matches an unknown PlugState member.
Pattern that matches an unknown ProviderAddDeviceError member.
Pattern that matches an unknown RegistryCreateObserverError member.
Pattern that matches an unknown RegistryWatchDeviceRemovedError member.
Pattern that matches an unknown RegistryWatchDevicesAddedError member.
Pattern that matches an unknown RingBufferSetActiveChannelsError member.
Pattern that matches an unknown RingBufferStartError member.
Pattern that matches an unknown RingBufferStopError member.
Pattern that matches an unknown RingBufferWatchDelayInfoError member.
Errors returned by Control/CodecStart.
Errors returned by Control/CodecStop.
Errors returned by Control/CreateRingBuffer.
Errors returned by ControlCreator/Create.
A ControlCreator interface creates Control instances. Each Control binds
to a single device. A device can only be bound to one Control at any time.
A Control instance is used to change the settings or state of an audio
device. It also creates the ring buffer used to pass audio data between
client and device. Each Control is associated with an initialized audio
device; conversely each device is associated with either zero or one
Control at any time.
Errors returned by Control/CodecReset.
Errors returned by Control/SetDaiFormat.
Errors returned by Control/SetGain.
The protocol used by the driver, and (if StreamConfig) its directionality.
The protocol channel used to configure and observe a device.
Errors returned by Observer/GetReferenceClock.
Observer instances are used to learn the capabilities and state of an
audio device, and to stay informed as its state changes over time. Each
Observer is associated with an initialized audio device. An audio device
may be observed by multiple Observer instances.
Errors returned by Observer/WatchGainState.
Errors returned by Observer/WatchPlugState.
The device’s hot-plug capabilities.
The current plugged-in state for the device.
Errors returned by the Provider protocol.
Use the Provider interface to manually add devices that do not use the devfs
mechanism. (Devices that use devfs are automatically added, upon detection.)
Errors returned by Registry/CreateObserver.
Registry instances notify clients as devices arrive and depart, and they
create observers (see Observer) that notify of more detailed state changes.
Errors returned by Registry/WatchDeviceRemoved.
Errors returned by Registry/WatchDevicesAdded.
A RingBuffer instance controls data flow for the associated audio stream.
Errors returned by RingBuffer/SetActiveChannels.
Errors returned by RingBuffer/Start.
Errors returned by RingBuffer/Stop.
Errors returned by RingBuffer/WatchDelayInfo.
For devices with Codec or Dai drivers, there is only one DAI_INTERCONNECT entity. When a method
requires us to address the interconnect by ID, we use element_id 1. Codec and Dai drivers that
implement signalprocessing should not assign this ID to other elements.
For devices with Dai or StreamConfig drivers, there is only one RING_BUFFER entity. When a
method requires us to address the RingBuffer by ID, we use element_id 0. Dai and StreamConfig
drivers that implement signalprocessing should not assign this ID to other elements.
Maximum number of channels that a device can report as supported.
Maximum number of ChannelSets that a device can report in a single PcmFormatSet.
Maximum number of audio devices in the system at any time.
Maximum number of PcmFormatSets that a device can report as supported.
Maximum number of processing elements supported by a single device.
Maximum number of frame rates that a device can report in a PcmFormatSet.
Maximum number of distinct sample formats that a single PcmFormatSet can contain.
Maximum length of the strings for device, manufacturer and product names.
The length of the device’s unique ID, in bytes.