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ALSA: snd-pcsp: add nopcm mode

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Currently, if the high-res timers are unavailable, snd-pcsp does not
initialize. People who choose it over pcspkr, loose their console beeps
in that case and get annoyed.
With this patch, the console beeps remain regardless of the high-res
timers. Additionally, the "nopcm" modparam is added to forcibly
disable the PCM capabilities of the driver.

Signed-off-by: Stas Sergeev <stsp@aknet.ru>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Stas Sergeev
2009-11-01 11:13:19 +01:00
committed by Takashi Iwai
parent e87a3dd33e
commit bcc2c6b7cb
4 changed files with 49 additions and 21 deletions
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1
Documentation/sound/alsa/ALSA-Configuration.txt
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@@ -1454,6 +1454,7 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
Module for internal PC-Speaker.
nopcm - Disable PC-Speaker PCM sound. Only beeps remain.
nforce_wa - enable NForce chipset workaround. Expect bad sound.
This module supports system beeps, some kind of PCM playback and