What:		/config/usb-gadget/gadget/functions/uac2.name
Date:		Sep 2014
KernelVersion:	3.18
Description:
		The attributes:

		=========  ============================
		c_chmask   capture channel mask
		c_srate    capture sampling rate
		c_ssize    capture sample size (bytes)
		p_chmask   playback channel mask
		p_srate    playback sampling rate
		p_ssize    playback sample size (bytes)
		=========  ============================