From 695d39ffc2b59b8333ff85724619514f98613205 Mon Sep 17 00:00:00 2001 From: Julian Scheel Date: Fri, 21 Jan 2022 16:53:04 +0100 Subject: usb: gadget: f_uac1: Support multiple sampling rates A list of sampling rates can be specified via configfs. All enabled sampling rates are sent to the USB host on request. When the host selects a sampling rate the internal active rate is updated. Config strings with single value stay compatible with the previous version. Multiple samplerates passed as configuration arrays to g_audio module when built for f_uac1. Signed-off-by: Julian Scheel Signed-off-by: Pavel Hofman Link: https://lore.kernel.org/r/20220121155308.48794-7-pavel.hofman@ivitera.com Signed-off-by: Greg Kroah-Hartman --- Documentation/usb/gadget-testing.rst | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'Documentation/usb') diff --git a/Documentation/usb/gadget-testing.rst b/Documentation/usb/gadget-testing.rst index 419f6e5e890a..046842b00c89 100644 --- a/Documentation/usb/gadget-testing.rst +++ b/Documentation/usb/gadget-testing.rst @@ -916,7 +916,7 @@ The uac1 function provides these attributes in its function directory: ================ ==================================================== c_chmask capture channel mask - c_srate capture sampling rate + 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 @@ -924,7 +924,7 @@ The uac1 function provides these attributes in its function directory: 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 playback sampling rate + 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 -- cgit