path: root/Documentation/sound
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authorTakashi Iwai <tiwai@suse.de>2012-11-20 18:24:47 +0100
committerTakashi Iwai <tiwai@suse.de>2012-11-21 11:37:40 +0100
commit20d32022a8d8639a33d0e429f2d3c51b527ea362 (patch)
tree361cb984165311d03c39849f402d7ee4e075d9d8 /Documentation/sound
parent8ad10dc6d3fe8396d8213af4d5ce58e0010a3cbc (diff)
ALSA: usb-audio: Deprecate async_unlink option
The async unlink behavior has been working over years. The option was provided only as a workaround for 2.4.x kernel. Let's get rid of it. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'Documentation/sound')
1 files changed, 0 insertions, 3 deletions
diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt
index d90d8ec2853d..b9cfd339a6fa 100644
--- a/Documentation/sound/alsa/ALSA-Configuration.txt
+++ b/Documentation/sound/alsa/ALSA-Configuration.txt
@@ -1905,7 +1905,6 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
vid - Vendor ID for the device (optional)
pid - Product ID for the device (optional)
nrpacks - Max. number of packets per URB (default: 8)
- async_unlink - Use async unlink mode (default: yes)
device_setup - Device specific magic number (optional)
- Influence depends on the device
- Default: 0x0000
@@ -1917,8 +1916,6 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
NB: nrpacks parameter can be modified dynamically via sysfs.
Don't put the value over 20. Changing via sysfs has no sanity
- NB: async_unlink=0 would cause Oops. It remains just for
- debugging purpose (if any).
NB: ignore_ctl_error=1 may help when you get an error at accessing
the mixer element such as URB error -22. This happens on some
buggy USB device or the controller.

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