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[ALSA] hda-codec - Make the mixer capability check more robust

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In some cases, mixer elements return -EINVAL because it couldn't
obtain proper amp_cap bits.  The patch improves the robustness,
trying the amp_cap query again in such a case.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This commit is contained in:
Takashi Iwai 2007-05-10 16:56:09 +02:00 • committed by Jaroslav Kysela
parent d417045e7d
commit b75e53f092
1 changed files with 2 additions and 1 deletions
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1
sound/pci/hda/hda_codec.c
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@ -707,6 +707,7 @@ static u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
direction == HDA_OUTPUT ? direction == HDA_OUTPUT ?
AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_OUT_CAP :
AC_PAR_AMP_IN_CAP); AC_PAR_AMP_IN_CAP);
if (info->amp_caps)
info->status |= INFO_AMP_CAPS; info->status |= INFO_AMP_CAPS;
} }
return info->amp_caps; return info->amp_caps;