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ALSA: usb-audio: Fix mixer ctl regression of Native Instrument devices

The commit [da6d276957ea: ALSA: usb-audio: Add resume support for
Native Instruments controls] brought a regression where the Native
Instrument audio devices don't get the correct value at update due to
the missing shift at writing.  This patch addresses it.

Fixes: da6d276957ea ('ALSA: usb-audio: Add resume support for Native Instruments controls')
Reported-and-tested-by: Owen Williams <owilliams@mixxx.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Iwai 9 年 前
コミット
c4a359a004
1 ファイル変更1 行追加1 行削除
  1. 1 1
      sound/usb/mixer_quirks.c

+ 1 - 1
sound/usb/mixer_quirks.c

@@ -793,7 +793,7 @@ static int snd_nativeinstruments_control_put(struct snd_kcontrol *kcontrol,
 		return 0;
 
 	kcontrol->private_value &= ~(0xff << 24);
-	kcontrol->private_value |= newval;
+	kcontrol->private_value |= (unsigned int)newval << 24;
 	err = snd_ni_update_cur_val(list);
 	return err < 0 ? err : 1;
 }