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-rw-r--r--Documentation/ABI/testing/configfs-usb-gadget-uac133
-rw-r--r--Documentation/ABI/testing/configfs-usb-gadget-uac1_legacy12
2 files changed, 45 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-uac1 b/Documentation/ABI/testing/configfs-usb-gadget-uac1
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+++ b/Documentation/ABI/testing/configfs-usb-gadget-uac1
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+What: /config/usb-gadget/gadget/functions/uac1.name
+Date: June 2017
+KernelVersion: 4.14
+Description:
+ The attributes:
+
+ ===================== =======================================
+ c_chmask capture channel mask
+ c_srate list of capture sampling rates (comma-separated)
+ c_ssize capture sample size (bytes)
+ c_mute_present capture mute control enable
+ c_volume_present capture volume control enable
+ c_volume_min capture volume control min value
+ (in 1/256 dB)
+ c_volume_max capture volume control max value
+ (in 1/256 dB)
+ c_volume_res capture volume control resolution
+ (in 1/256 dB)
+ p_chmask playback channel mask
+ p_srate list of playback sampling rates (comma-separated)
+ p_ssize playback sample size (bytes)
+ p_mute_present playback mute control enable
+ p_volume_present playback volume control enable
+ p_volume_min playback volume control min value
+ (in 1/256 dB)
+ p_volume_max playback volume control max value
+ (in 1/256 dB)
+ p_volume_res playback volume control resolution
+ (in 1/256 dB)
+ req_number the number of pre-allocated requests
+ for both capture and playback
+ function_name name of the interface
+ ===================== =======================================
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-uac1_legacy b/Documentation/ABI/testing/configfs-usb-gadget-uac1_legacy
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index 000000000..b2eaefd9b
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+What: /config/usb-gadget/gadget/functions/uac1_legacy.name
+Date: Sep 2014
+KernelVersion: 3.18
+Description:
+ The attributes:
+
+ audio_buf_size - audio buffer size
+ fn_cap - capture pcm device file name
+ fn_cntl - control device file name
+ fn_play - playback pcm device file name
+ req_buf_size - ISO OUT endpoint request buffer size
+ req_count - ISO OUT endpoint request count