ALSA: control: add support for ENUMERATED user space controls

Handling of user control elements was implemented for all types except
ENUMERATED.  This type will be needed for the device-specific mixers of
upcoming FireWire drivers.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 3 insertions, 1 deletions

diff --git a/include/sound/asound.h b/include/sound/asound.h
index 5d6074faa279..a2e4ff5ba9e9 100644
--- a/include/sound/asound.h
+++ b/include/sound/asound.h
@@ -706,7 +706,7 @@ struct snd_timer_tread {
  *                                                                          *
  ****************************************************************************/
 
-#define SNDRV_CTL_VERSION               SNDRV_PROTOCOL_VERSION(2, 0, 6)
+#define SNDRV_CTL_VERSION               SNDRV_PROTOCOL_VERSION(2, 0, 7)
 
 struct snd_ctl_card_info {
         int card;                       /* card number */
@@ -803,6 +803,8 @@ struct snd_ctl_elem_info {
                         unsigned int items;     /* R: number of items */
                         unsigned int item;      /* W: item number */
                         char name[64];          /* R: value name */
+                        __u64 names_ptr;        /* W: names list (ELEM_ADD only) */
+                        unsigned int names_length;
                 } enumerated;
                 unsigned char reserved[128];
         } value;