From: Paul S McSpadden Date: Sun, 3 Aug 2014 22:47:36 +0000 (-0500) Subject: ALSA: usb-audio: Adjust Gamecom 780 volume level X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=542baf94ec3c5526955b4c9fd899c7f30fae4ebe;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git ALSA: usb-audio: Adjust Gamecom 780 volume level 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 Cc: [v3.14+] Signed-off-by: Takashi Iwai --- diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index 7c57f2268dd7..19a921eb75f1 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -670,7 +670,7 @@ static int snd_usb_gamecon780_boot_quirk(struct usb_device *dev) /* 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);