[ALSA] oxygen: add front panel controls

Add mixer controls for the front panel AC97 codec.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/pci/oxygen/oxygen.h b/sound/pci/oxygen/oxygen.h
index 55ce244..e71c534 100644
--- a/sound/pci/oxygen/oxygen.h
+++ b/sound/pci/oxygen/oxygen.h
@@ -86,7 +86,7 @@
 			       struct snd_pcm_hw_params *params);
 	void (*update_dac_volume)(struct oxygen *chip);
 	void (*update_dac_mute)(struct oxygen *chip);
-	void (*ac97_switch_hook)(struct oxygen *chip,
+	void (*ac97_switch_hook)(struct oxygen *chip, unsigned int codec,
 				 unsigned int reg, int mute);
 	size_t model_data_size;
 	u8 dac_channels;