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1What: /config/usb-gadget/gadget/functions/uac1.name2Date: June 20173KernelVersion: 4.144Description:5 The attributes:6 7 ===================== =======================================8 c_chmask capture channel mask9 c_srate list of capture sampling rates (comma-separated)10 c_ssize capture sample size (bytes)11 c_mute_present capture mute control enable12 c_volume_present capture volume control enable13 c_volume_min capture volume control min value14 (in 1/256 dB)15 c_volume_max capture volume control max value16 (in 1/256 dB)17 c_volume_res capture volume control resolution18 (in 1/256 dB)19 p_chmask playback channel mask20 p_srate list of playback sampling rates (comma-separated)21 p_ssize playback sample size (bytes)22 p_mute_present playback mute control enable23 p_volume_present playback volume control enable24 p_volume_min playback volume control min value25 (in 1/256 dB)26 p_volume_max playback volume control max value27 (in 1/256 dB)28 p_volume_res playback volume control resolution29 (in 1/256 dB)30 req_number the number of pre-allocated requests31 for both capture and playback32 function_name name of the interface33 p_it_name playback input terminal name34 p_it_ch_name playback channels name35 p_ot_name playback output terminal name36 p_fu_vol_name playback mute/volume functional unit name37 c_it_name capture input terminal name38 c_it_ch_name capture channels name39 c_ot_name capture output terminal name40 c_fu_vol_name capture mute/volume functional unit name41 ===================== =======================================42