| # Copyright (c) 2023 Nordic Semiconductor ASA |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| description: USB Audio Class 2 Audio Streaming interface |
| |
| compatible: "zephyr,uac2-audio-streaming" |
| |
| properties: |
| linked-terminal: |
| type: phandle |
| required: true |
| description: | |
| Input or Output Terminal to which this interface is connected. |
| |
| active-alternate-setting-control: |
| type: string |
| description: Active Alternate Setting Control capabilities |
| enum: |
| - "read-only" |
| |
| valid-alternate-settings-control: |
| type: string |
| description: Valid Alternate Settings Control capabilities |
| enum: |
| - "read-only" |
| |
| external-interface: |
| type: boolean |
| description: | |
| Enable if audio stream is not transmitted over USB (Type IV Audio Stream). |
| |
| implicit-feedback: |
| type: boolean |
| description: | |
| Enable implicit feedback on asynchronous endpoint. For IN endpoints this |
| sets endpoint behaviour type to implicit feedback data endpoint. For OUT |
| endpoints setting this property removes explicit feedback endpoint. |
| |
| pitch-control: |
| type: string |
| description: Pitch Control capabilities |
| enum: |
| - "read-only" |
| - "host-programmable" |
| |
| data-overrun-control: |
| type: string |
| description: Data Overrun capabilities |
| enum: |
| - "read-only" |
| |
| data-underrun-control: |
| type: string |
| description: Data Underrun capabilities |
| enum: |
| - "read-only" |
| |
| lock-delay: |
| type: int |
| description: | |
| Time it takes this endpoint to reliably lock its internal clock recovery |
| circuitry. Units depend on the lock-delay-units field. Relevant only if |
| linked-terminal's clock is sof-synchronized. |
| |
| lock-delay-units: |
| type: string |
| description: Units for lock-delay parameter. |
| enum: |
| - "milliseconds" |
| - "decoded-pcm-samples" |
| |
| subslot-size: |
| type: int |
| description: | |
| Number of bytes occupied by one audio subslot. Can be 1, 2, 3 or 4. |
| |
| bit-resolution: |
| type: int |
| description: | |
| Number of effectively used bits in audio subslot. |