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| author | Jaroslav Kysela <perex@suse.cz> | 2005-01-12 13:12:00 +0100 |
|---|---|---|
| committer | Jaroslav Kysela <perex@suse.cz> | 2005-01-12 13:12:00 +0100 |
| commit | 830d0b66b795e0004820734360ea49f7039e19c5 (patch) | |
| tree | 759b8c2e50eb192aff7ad8e44d07f175c13f0921 /Documentation | |
| parent | 53f3bedaca90c124eca49799ac26bcc66157dedb (diff) | |
| download | history-830d0b66b795e0004820734360ea49f7039e19c5.tar.gz | |
[ALSA] Fix description of ALSA/OSS device mapping
Documentation
Fixed the description of ALSA/OSS device mapping. The direction
suffix was missing in ALSA devices.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/sound/alsa/ALSA-Configuration.txt | 27 |
1 files changed, 15 insertions, 12 deletions
diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt index c2ea934104ed5d..9970b979a87921 100644 --- a/Documentation/sound/alsa/ALSA-Configuration.txt +++ b/Documentation/sound/alsa/ALSA-Configuration.txt @@ -1402,18 +1402,21 @@ In this example, the interwave card is always loaded as the first card ALSA PCM devices to OSS devices mapping ======================================= -/dev/snd/pcmC0D0 -> /dev/audio0 (/dev/audio) -> minor 4 -/dev/snd/pcmC0D0 -> /dev/dsp0 (/dev/dsp) -> minor 3 -/dev/snd/pcmC0D1 -> /dev/adsp0 (/dev/adsp) -> minor 12 -/dev/snd/pcmC1D0 -> /dev/audio1 -> minor 4+16 = 20 -/dev/snd/pcmC1D0 -> /dev/dsp1 -> minor 3+16 = 19 -/dev/snd/pcmC1D1 -> /dev/adsp1 -> minor 12+16 = 28 -/dev/snd/pcmC2D0 -> /dev/audio2 -> minor 4+32 = 36 -/dev/snd/pcmC2D0 -> /dev/dsp2 -> minor 3+32 = 39 -/dev/snd/pcmC2D1 -> /dev/adsp2 -> minor 12+32 = 44 - -The first number from /dev/snd/pcmC{X}D{Y} expression means soundcard number -and second means device number. +/dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4 +/dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3 +/dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12 +/dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20 +/dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19 +/dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28 +/dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36 +/dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39 +/dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44 + +The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means +soundcard number and second means device number. The ALSA devices +have either 'c' or 'p' suffix indicating the direction, capture and +playback, respectively. + Please note that the device mapping above may be varied via the module options of snd-pcm-oss module. |