tree a0ccadcd4ab6fe2fa7b7dbde1a8b542b7b105c15
parent a5ba6beb839cfa288960c92cd2668a2601c24dda
author Jaroslav Kysela <perex@perex.cz> 1282133297 +0200
committer Takashi Iwai <tiwai@suse.de> 1282137059 +0200

ALSA: emu10k1 - delay the PCM interrupts (add pcm_irq_delay parameter)

With some hardware combinations, the PCM interrupts are acknowledged
before the period boundary from the emu10k1 chip. The midlevel PCM code
gets confused and the playback stream is interrupted.

It seems that the interrupt processing shift by 2 samples is enough
to fix this issue. This default value does not harm other,
non-affected hardware.

More information: Kernel bugzilla bug#16300

[A copmile warning fixed by tiwai]

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>