From a2142674b958d89e0806228a5f6cd22ec379d61d Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 29 Mar 2005 16:33:28 +0200 Subject: [PATCH] [ALSA] Fix the detection of resolution of ac97 controls AC97 Codec Fixed the detection of bit resolution of ac97 mixer controls. This will fix the problem with TI ac97 codecs. Signed-off-by: Takashi Iwai --- sound/pci/ac97/ac97_codec.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/pci/ac97/ac97_codec.c b/sound/pci/ac97/ac97_codec.c index 0b024ec1f7..7d2854de0c 100644 --- a/sound/pci/ac97/ac97_codec.c +++ b/sound/pci/ac97/ac97_codec.c @@ -1072,9 +1072,9 @@ static void check_volume_resolution(ac97_t *ac97, int reg, unsigned char *lo_max unsigned short val; snd_ac97_write(ac97, reg, 0x8080 | cbit[i] | (cbit[i] << 8)); val = snd_ac97_read(ac97, reg); - if (! *lo_max && (val & cbit[i])) + if (! *lo_max && (val & 0x7f) == cbit[i]) *lo_max = max[i]; - if (! *hi_max && (val & (cbit[i] << 8))) + if (! *hi_max && ((val >> 8) & 0x7f) == cbit[i]) *hi_max = max[i]; if (*lo_max && *hi_max) break; -- 2.39.5