ALSA: usb-audio: use enum control info helper
Simplify info callbacks by using the snd_ctl_enum_info() helper function.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/usb/midi.c b/sound/usb/midi.c
index 25bce7e..d7021cb 100644
--- a/sound/usb/midi.c
+++ b/sound/usb/midi.c
@@ -1729,13 +1729,7 @@
{
static const char *const names[] = { "High Load", "Light Load" };
- info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
- info->count = 1;
- info->value.enumerated.items = 2;
- if (info->value.enumerated.item > 1)
- info->value.enumerated.item = 1;
- strcpy(info->value.enumerated.name, names[info->value.enumerated.item]);
- return 0;
+ return snd_ctl_enum_info(info, 1, 2, names);
}
static int roland_load_get(struct snd_kcontrol *kcontrol,
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index f2d74d6..7df89b3 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -1633,18 +1633,11 @@
static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
struct usb_mixer_elem_info *cval = kcontrol->private_data;
- char **itemlist = (char **)kcontrol->private_value;
+ const char **itemlist = (const char **)kcontrol->private_value;
if (snd_BUG_ON(!itemlist))
return -EINVAL;
- uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
- uinfo->count = 1;
- uinfo->value.enumerated.items = cval->max;
- if (uinfo->value.enumerated.item >= cval->max)
- uinfo->value.enumerated.item = cval->max - 1;
- strlcpy(uinfo->value.enumerated.name, itemlist[uinfo->value.enumerated.item],
- sizeof(uinfo->value.enumerated.name));
- return 0;
+ return snd_ctl_enum_info(uinfo, 1, cval->max, itemlist);
}
/* get callback for selector unit */