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ALSA: hda - Add GPIO1 control at muting with HP laptops
authorTakashi Iwai <tiwai@suse.de>
Thu, 2 Jul 2009 14:10:23 +0000 (16:10 +0200)
committerTakashi Iwai <tiwai@suse.de>
Fri, 3 Jul 2009 12:58:59 +0000 (14:58 +0200)
commit099db17e66294b02814dee01c81d9abbbeece93e
tree0ab204a9f6687c274a65d9da40cf370fda9ad25etree
parentff84847171508a3c76eb7e483204d1be7738729bcommit | diff
ALSA: hda - Add GPIO1 control at muting with HP laptops

HP laptops with AD1984A codecs (at least mobile models) need to set
GPIO1 appropriately to indicate the mute state.  The BIOS checks this
bit to judge whether the mute on or off is sent via F8 key.
Without changing this bit, the BIOS can be confused and may toggle
the mute wrongly.

Reference: Novell bnc#515266
https://bugzilla.novell.com/show_bug.cgi?id=515266

Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/pci/hda/patch_analog.c diff | blob | blame | history
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