| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.16 017/125] ALSA: usb-audio: Adjust Gamecom 780 volume level | Date | Wed, 3 Sep 2014 15:06:14 -0700 |
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3.16-stable review patch. If anyone has any objections, please let me know.
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From: Paul S McSpadden <fisch602@gmail.com>
commit 542baf94ec3c5526955b4c9fd899c7f30fae4ebe upstream.
Original patch fixed the original problem, but the sound was far too low for most users. This patch references a compare matrix to allow the volume levels to act normally. I personally tested this patch myself, and volume levels returned to normal. Please see this discussion for more details: https://bugzilla.kernel.org/show_bug.cgi?id=65251
Signed-off-by: Paul S McSpadden <fisch602@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- sound/usb/quirks.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -670,7 +670,7 @@ static int snd_usb_gamecon780_boot_quirk /* set the initial volume and don't change; other values are either * too loud or silent due to firmware bug (bko#65251) */ - u8 buf[2] = { 0x74, 0xdc }; + u8 buf[2] = { 0x74, 0xe3 }; return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, UAC_FU_VOLUME << 8, 9 << 8, buf, 2);
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