[ALSA] Add documentation for HDSP MADI

Documentation
Added documentation for HDSP MADI driver by Winfried Ritsch.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 11 insertions, 0 deletions

diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt
index 812ed2b80b8d..ced9a6eac562 100644
--- a/Documentation/sound/alsa/ALSA-Configuration.txt
+++ b/Documentation/sound/alsa/ALSA-Configuration.txt
@@ -674,6 +674,17 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
           stage of boot sequence.  See "Early Buffer Allocation"
           section.
 
+  Module snd-hdspm
+  ----------------
+
+    Module for RME HDSP MADI board.
+
+    precise_ptr         - Enable precise pointer, or disable.
+    line_outs_monitor   - Send playback streams to analog outs by default.
+    enable_monitor      - Enable Analog Out on Channel 63/64 by default.
+
+    See hdspm.txt for details.
+
   Module snd-ice1712
   ------------------