./"sample_rate"16t"channels"16t"precision"nUUU
+/"encoding"16t"gain"16t"port"nUUX
+/"avail_ports"16t"mod_ports"16t"buffer_size"nXX4+U
+/"samples"16t"eof"16t"pause"nUUb
+/"error"8t"waiting"8t"balance"nbbb
+/"minordev"8t"open"8t"active"nx8tbb
