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 ===================== =======================================