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authorTakashi Iwai <tiwai@suse.de>2009-09-03 16:08:08 +0200
committerTakashi Iwai <tiwai@suse.de>2009-09-03 16:08:08 +0200
commit30681bcf2b15a601b9460e6ddab22077998b8d4c (patch)
tree7420846dfbcacf0bd45f50c8ea848b822893e127 /Documentation
parentb142037b4c1edf5ad0b2871c518d4f14ac1cd470 (diff)
downloadlinux-30681bcf2b15a601b9460e6ddab22077998b8d4c.tar.bz2
ALSA: dummy - Add more description
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/sound/alsa/ALSA-Configuration.txt13
1 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt
index 4252697a95d6..bb488b575def 100644
--- a/Documentation/sound/alsa/ALSA-Configuration.txt
+++ b/Documentation/sound/alsa/ALSA-Configuration.txt
@@ -513,6 +513,19 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
or input, but you may use this module for any application which
requires a sound card (like RealPlayer).
+ pcm_devs - Number of PCM devices assigned to each card
+ (default = 1, up to 4)
+ pcm_substreams - Number of PCM substreams assigned to each PCM
+ (default = 8, up to 16)
+ hrtimer - Use hrtimer (=1, default) or system timer (=0)
+
+ When multiple PCM devices are created, snd-dummy gives different
+ behavior to each PCM device:
+ 0 = interleaved with mmap support
+ 1 = non-interleaved with mmap support
+ 2 = interleaved without mmap
+ 3 = non-interleaved without mmap
+
The power-management is supported.
Module snd-echo3g