template <>

class WireWeakSyncClientImpl

Defined at line 8609 of file fidling/gen/sdk/fidl/fuchsia.audio.device/fuchsia.audio.device/cpp/fidl/fuchsia.audio.device/cpp/wire_messaging.h

Public Methods

::fidl::WireResult< ::fuchsia_audio_device::Observer::GetElements> GetElements ()

Returns a vector of supported processing elements.

This vector must include one or more processing elements.

Allocates 16 bytes of request buffer on the stack. Response is heap-allocated.

::fidl::WireResult< ::fuchsia_audio_device::Observer::WatchElementState> WatchElementState (uint64_t processing_element_id)

Get the processing element state via a hanging get.

For a given `processing_element_id`, the driver will immediately reply to the first

`WatchElementState` sent by the client. The driver will not respond to subsequent client

`WatchElementState` calls for that `processing_element_id` until any portion of the

`ElementState` has changed from what was most recently reported for that element.

The driver will close the protocol channel with an error of `ZX_ERR_INVALID_ARGS`, if

`processing_element_id` does not match an ElementId returned by `GetElements`.

The driver will close the protocol channel with an error of `ZX_ERR_BAD_STATE`, if this

method is called again while there is already a pending `WatchElementState` for this client

and `processing_element_id`.

Allocates 24 bytes of request buffer on the stack. Response is heap-allocated.

::fidl::WireResult< ::fuchsia_audio_device::Observer::GetTopologies> GetTopologies ()

Returns a vector of supported topologies.

This vector must include one or more topologies.

If more than one topology is returned, then the client may select any topology from the

list by calling `SetTopology`.

If only one topology is returned, `SetTopology` can still be called but causes no change.

Each Element must be included in at least one Topology, but need not be included in every

Topology.

Allocates 16 bytes of request buffer on the stack. Response is heap-allocated.

::fidl::WireResult< ::fuchsia_audio_device::Observer::WatchTopology> WatchTopology ()

Get the current topology via a hanging get.

The driver will immediately reply to the first `WatchTopology` sent by each client.

The driver will not respond to subsequent `WatchTopology` calls from that client until the

signal processing topology changes; this occurs as a result of a `SetTopology` call.

The driver will close the protocol channel with an error of `ZX_ERR_BAD_STATE`, if this

method is called again while there is already a pending `WatchTopology` for this client.

Allocates 56 bytes of message buffer on the stack. No heap allocation necessary.

::fidl::WireResult< ::fuchsia_audio_device::Observer::WatchPlugState> WatchPlugState ()

Request notification of any change to the device's plug state. When

called for the first time, it will return immediately.

Should only be called for Codec devices.

Allocates 16 bytes of request buffer on the stack. Response is heap-allocated.

::fidl::WireResult< ::fuchsia_audio_device::Observer::GetReferenceClock> GetReferenceClock ()

Retrieve the device's reference clock.

This clock will be in the domain specified in the device's `Info` table.

Should only be called for Composite devices.

Allocates 16 bytes of request buffer on the stack. Response is heap-allocated.