timer: obsolete legacy rtctimer instance

At v4.7 development, ALSA timer interface dropped device instance based on
legacy rtctimer implementation. User space applications should not use the
device instance.

This commit adds comments to notify a corresponding macro should not be
used anymore.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/include/sound/asound.h b/include/sound/asound.h
index 67bf49d8c94407ca6fe5547e7ce07ef992bab3fc..609cadb8739dbd143b6136d26cb7af2d7a0fc08a 100644 (file)
--- a/include/sound/asound.h
+++ b/include/sound/asound.h
@@ -672,7 +672,7 @@ enum {
 
 /* global timers (device member) */
 #define SNDRV_TIMER_GLOBAL_SYSTEM      0
-#define SNDRV_TIMER_GLOBAL_RTC         1
+#define SNDRV_TIMER_GLOBAL_RTC         1       /* unused */
 #define SNDRV_TIMER_GLOBAL_HPET                2
 #define SNDRV_TIMER_GLOBAL_HRTIMER     3
 

diff --git a/include/timer.h b/include/timer.h
index 2803f532732959938bec475e71658d487fd9eb33..32d9b89576b3ecc8ed3739265a66e8854d9aff3b 100644 (file)
--- a/include/timer.h
+++ b/include/timer.h
@@ -112,7 +112,7 @@ typedef struct _snd_timer_tread {
 /** global timer - system */
 #define SND_TIMER_GLOBAL_SYSTEM 0
 /** global timer - RTC */
-#define SND_TIMER_GLOBAL_RTC   1
+#define SND_TIMER_GLOBAL_RTC   1       /* Obsoleted, due to enough legacy. */
 /** global timer - HPET */
 #define SND_TIMER_GLOBAL_HPET  2
 /** global timer - HRTIMER */