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| author | Takashi Iwai <tiwai@suse.de> | 2010-08-18 15:17:42 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2010-08-18 15:17:42 +0200 |
| commit | 7ac03db84baa204d7d280401ed65842541ed1078 (patch) | |
| tree | 302aef81d52334c9dc99234d4a9f05977fecb73d /sound/drivers/Kconfig | |
| parent | Merge branch 'topic/isa' into topic/misc (diff) | |
| parent | ALSA: introduce the snd-aloop module for the PCM loopback (diff) | |
| download | linux-7ac03db84baa204d7d280401ed65842541ed1078.tar.xz linux-7ac03db84baa204d7d280401ed65842541ed1078.zip | |
Merge branch 'topic/aloop' into topic/misc
Diffstat (limited to 'sound/drivers/Kconfig')
| -rw-r--r-- | sound/drivers/Kconfig | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/sound/drivers/Kconfig b/sound/drivers/Kconfig index 480c38623da8..c8961165277c 100644 --- a/sound/drivers/Kconfig +++ b/sound/drivers/Kconfig @@ -74,6 +74,25 @@ config SND_DUMMY To compile this driver as a module, choose M here: the module will be called snd-dummy. +config SND_ALOOP + tristate "Generic loopback driver (PCM)" + select SND_PCM + help + Say 'Y' or 'M' to include support for the PCM loopback device. + This module returns played samples back to the user space using + the standard ALSA PCM device. The devices are routed 0->1 and + 1->0, where first number is the playback PCM device and second + number is the capture device. Module creates two PCM devices and + configured number of substreams (see the pcm_substreams module + parameter). + + The looback device allow time sychronization with an external + timing source using the time shift universal control (+-20% + of system time). + + To compile this driver as a module, choose M here: the module + will be called snd-aloop. + config SND_VIRMIDI tristate "Virtual MIDI soundcard" depends on SND_SEQUENCER |