ALSA: usb-audio: Use snd_ctl_enum_info()

... and reduce the open codes.  Also add missing const to text arrays.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index f119a41..3980bf5 100644 (file)
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -437,19 +437,9 @@ static void snd_audigy2nx_proc_read(struct snd_info_entry *entry,
 static int snd_emu0204_ch_switch_info(struct snd_kcontrol *kcontrol,
                                      struct snd_ctl_elem_info *uinfo)
 {
-       static const char *texts[2] = {"1/2",
-                                      "3/4"
-       };
-
-       uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-       uinfo->count = 1;
-       uinfo->value.enumerated.items = 2;
-       if (uinfo->value.enumerated.item > 1)
-               uinfo->value.enumerated.item = 1;
-       strcpy(uinfo->value.enumerated.name,
-               texts[uinfo->value.enumerated.item]);
+       static const char * const texts[2] = {"1/2", "3/4"};
 
-       return 0;
+       return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts);
 }
 
 static int snd_emu0204_ch_switch_get(struct snd_kcontrol *kcontrol,
@@ -735,25 +725,12 @@ struct snd_ftu_eff_switch_priv_val {
 static int snd_ftu_eff_switch_info(struct snd_kcontrol *kcontrol,
                                        struct snd_ctl_elem_info *uinfo)
 {
-       static const char *texts[8] = {"Room 1",
-                                      "Room 2",
-                                      "Room 3",
-                                      "Hall 1",
-                                      "Hall 2",
-                                      "Plate",
-                                      "Delay",
-                                      "Echo"
+       static const char *const texts[8] = {
+               "Room 1", "Room 2", "Room 3", "Hall 1",
+               "Hall 2", "Plate", "Delay", "Echo"
        };
 
-       uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-       uinfo->count = 1;
-       uinfo->value.enumerated.items = 8;
-       if (uinfo->value.enumerated.item > 7)
-               uinfo->value.enumerated.item = 7;
-       strcpy(uinfo->value.enumerated.name,
-               texts[uinfo->value.enumerated.item]);
-
-       return 0;
+       return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts);
 }
 
 static int snd_ftu_eff_switch_get(struct snd_kcontrol *kctl,