1 This document describes standard names of mixer controls.
3 Syntax: SOURCE [DIRECTION] FUNCTION
6 <nothing> (both directions)
13 Switch (on/off switch)
15 Route (route control, hardware specific)
21 Speaker (internal speaker)
40 Analog Loopback (D/A -> A/D loopback)
41 Digital Loopback (playback -> capture loopback - without analog path)
52 [Digital] Capture Source
53 [Digital] Capture Switch (aka input gain switch)
54 [Digital] Capture Volume (aka input gain volume)
55 [Digital] Playback Switch (aka output gain switch)
56 [Digital] Playback Volume (aka output gain volume)
70 Sample Clock Source { "Word", "Internal", "AutoSync" }
71 Clock Sync Status { "Lock", "Sync", "No Lock" }
72 External Rate /* external capture rate */
73 Capture Rate /* capture rate taken from external source */
75 IEC958 (S/PDIF) interface:
77 IEC958 [...] [Playback|Capture] Switch /* turn on/off the IEC958 interface */
78 IEC958 [...] [Playback|Capture] Volume /* digital volume control */
79 IEC958 [...] [Playback|Capture] Default /* default or global value - read/write */
80 IEC958 [...] [Playback|Capture] Mask /* consumer and professional mask */
81 IEC958 [...] [Playback|Capture] Con Mask /* consumer mask */
82 IEC958 [...] [Playback|Capture] Pro Mask /* professional mask */
83 IEC958 [...] [Playback|Capture] PCM Stream /* the settings assigned to a PCM stream */
84 IEC958 Q-subcode [Playback|Capture] Default /* Q-subcode bits */
85 IEC958 Preamble [Playback|Capture] Default /* burst preamble words (4*16bits) */