1What: /config/usb-gadget/gadget/functions/uac2.name 2Date: Sep 2014 3KernelVersion: 3.18 4Description: 5 The attributes: 6 7 ===================== ======================================= 8 c_chmask capture channel mask 9 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 type 13 (async/adaptive) 14 c_mute_present capture mute control enable 15 c_volume_present capture volume control enable 16 c_volume_min capture volume control min value 17 (in 1/256 dB) 18 c_volume_max capture volume control max value 19 (in 1/256 dB) 20 c_volume_res capture volume control resolution 21 (in 1/256 dB) 22 fb_max maximum extra bandwidth in async mode 23 p_chmask playback channel mask 24 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 enable 28 p_volume_present playback volume control enable 29 p_volume_min playback volume control min value 30 (in 1/256 dB) 31 p_volume_max playback volume control max value 32 (in 1/256 dB) 33 p_volume_res playback volume control resolution 34 (in 1/256 dB) 35 req_number the number of pre-allocated requests 36 for both capture and playback 37 function_name name of the interface 38 if_ctrl_name topology control name 39 clksrc_in_name input clock name 40 clksrc_out_name output clock name 41 p_it_name playback input terminal name 42 p_it_ch_name playback input first channel name 43 p_ot_name playback output terminal name 44 p_fu_vol_name playback mute/volume function unit name 45 c_it_name capture input terminal name 46 c_it_ch_name capture input first channel name 47 c_ot_name capture output terminal name 48 c_fu_vol_name capture mute/volume functional unit name 49 c_terminal_type code of the capture terminal type 50 p_terminal_type code of the playback terminal type 51 ===================== ======================================= 52