[ALSA] Stereo controls for M-Audio Revolution cards

This patch adds stereo controls to revo cards by making the ak4xxx
driver mixers configurable from the card driver.

Signed-off-by: Jani Alinikula <janialinikula@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/sound/ak4xxx-adda.h b/include/sound/ak4xxx-adda.h
index 3bf5911fe827..acf8cc1292e0 100644
--- a/include/sound/ak4xxx-adda.h
+++ b/include/sound/ak4xxx-adda.h
@@ -53,6 +53,8 @@ struct snd_akm4xxx {
                 SND_AK4524, SND_AK4528, SND_AK4529,
                 SND_AK4355, SND_AK4358, SND_AK4381
         } type;
+        unsigned int *num_stereo;                       /* array of combined counts for the mixer */
+        char **channel_names;                           /* array of mixer channel names */
         struct snd_ak4xxx_ops ops;
 };