1What: /config/usb-gadget/gadget/functions/uac1.name 2Date: June 2017 3KernelVersion: 4.14 4Description: 5 The attributes: 6 7 ===================== ======================================= 8 c_chmask capture channel mask 9 c_srate capture sampling rate 10 c_ssize capture sample size (bytes) 11 c_mute_present capture mute control enable 12 c_volume_present capture volume control enable 13 c_volume_min capture volume control min value 14 (in 1/256 dB) 15 c_volume_max capture volume control max value 16 (in 1/256 dB) 17 c_volume_res capture volume control resolution 18 (in 1/256 dB) 19 p_chmask playback channel mask 20 p_srate playback sampling rate 21 p_ssize playback sample size (bytes) 22 p_mute_present playback mute control enable 23 p_volume_present playback volume control enable 24 p_volume_min playback volume control min value 25 (in 1/256 dB) 26 p_volume_max playback volume control max value 27 (in 1/256 dB) 28 p_volume_res playback volume control resolution 29 (in 1/256 dB) 30 req_number the number of pre-allocated requests 31 for both capture and playback 32 ===================== ======================================= 33