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ALSA: Add missing description of usb-audio parameters
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Added the missing description of module parameters of usb-audio driver
to ALSA-Configuration.txt.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
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Takashi Iwai authored and Jaroslav Kysela committed Aug 15, 2008
1 parent ba44368 commit 8a8f266
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8 changes: 8 additions & 0 deletions Documentation/sound/alsa/ALSA-Configuration.txt
Original file line number Diff line number Diff line change
Expand Up @@ -1978,12 +1978,20 @@ 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

This module supports multiple devices, autoprobe and hotplugging.

NB: nrpacks parameter can be modified dynamically via sysfs.
Don't put the value over 20. Changing via sysfs has no sanity
check.
NB: async_unlink=0 would cause Oops. It remains just for
debugging purpose (if any).

Module snd-usb-caiaq
--------------------

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