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1What: /config/usb-gadget/gadget/functions/uac2.name2Date: Sep 20143KernelVersion: 3.184Description: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_hs_bint capture bInterval for HS/SS (1-4: fixed, 0: auto)12 c_sync capture synchronization type13 (async/adaptive)14 c_mute_present capture mute control enable15 c_volume_present capture volume control enable16 c_volume_min capture volume control min value17 (in 1/256 dB)18 c_volume_max capture volume control max value19 (in 1/256 dB)20 c_volume_res capture volume control resolution21 (in 1/256 dB)22 fb_max maximum extra bandwidth in async mode23 p_chmask playback channel mask24 p_srate list of playback sampling rates (comma-separated)25 p_ssize playback sample size (bytes)26 p_hs_bint playback bInterval for HS/SS (1-4: fixed, 0: auto)27 p_mute_present playback mute control enable28 p_volume_present playback volume control enable29 p_volume_min playback volume control min value30 (in 1/256 dB)31 p_volume_max playback volume control max value32 (in 1/256 dB)33 p_volume_res playback volume control resolution34 (in 1/256 dB)35 req_number the number of pre-allocated requests36 for both capture and playback37 function_name name of the interface38 if_ctrl_name topology control name39 clksrc_in_name input clock name40 clksrc_out_name output clock name41 p_it_name playback input terminal name42 p_it_ch_name playback input first channel name43 p_ot_name playback output terminal name44 p_fu_vol_name playback mute/volume function unit name45 c_it_name capture input terminal name46 c_it_ch_name capture input first channel name47 c_ot_name capture output terminal name48 c_fu_vol_name capture mute/volume functional unit name49 c_terminal_type code of the capture terminal type50 p_terminal_type code of the playback terminal type51 ===================== =======================================52