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 (in 1/256 dB) 14 c_volume_max capture volume control max value (in 1/256 dB) 15 c_volume_res capture volume control resolution (in 1/256 dB) 16 p_chmask playback channel mask 17 p_srate playback sampling rate 18 p_ssize playback sample size (bytes) 19 p_mute_present playback mute control enable 20 p_volume_present playback volume control enable 21 p_volume_min playback volume control min value (in 1/256 dB) 22 p_volume_max playback volume control max value (in 1/256 dB) 23 p_volume_res playback volume control resolution (in 1/256 dB) 24 req_number the number of pre-allocated request 25 for both capture and playback 26 ========== =================================== 27