Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b9ed4f2b68dc47b0c35c1a3ae8ae97c2517d5177
Commit: b9ed4f2b68dc47b0c35c1a3ae8ae97c2517d5177
Parent: 90fd5ce5f67968d3250eeab9bc1f6822644347ef
Author: Takashi Iwai <[EMAIL PROTECTED]>
AuthorDate: Mon Jul 23 15:41:34 2007 +0200
Committer: Jaroslav Kysela <[EMAIL PROTECTED]>
CommitDate: Tue Oct 16 15:57:44 2007 +0200
[ALSA] Add helper functions for frequently used callbacks
Added helper functions for frequenty used callbacks:
snd_ctl_boolean_mono_info() and snd_ctl_boolean_stereo_info()
Signed-off-by: Takashi Iwai <[EMAIL PROTECTED]>
Signed-off-by: Jaroslav Kysela <[EMAIL PROTECTED]>
---
include/sound/control.h | 8 ++++++++
sound/core/control.c | 27 +++++++++++++++++++++++++++
2 files changed, 35 insertions(+), 0 deletions(-)
diff --git a/include/sound/control.h b/include/sound/control.h
index 72e759f..b26d463 100644
--- a/include/sound/control.h
+++ b/include/sound/control.h
@@ -161,4 +161,12 @@ static inline struct snd_ctl_elem_id
*snd_ctl_build_ioff(struct snd_ctl_elem_id
return dst_id;
}
+/*
+ * Frequently used control callbacks
+ */
+int snd_ctl_boolean_mono_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo);
+int snd_ctl_boolean_stereo_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo);
+
#endif /* __SOUND_CONTROL_H */
diff --git a/sound/core/control.c b/sound/core/control.c
index 1f1ab9c..396e98e 100644
--- a/sound/core/control.c
+++ b/sound/core/control.c
@@ -1486,3 +1486,30 @@ int snd_ctl_create(struct snd_card *card)
snd_assert(card != NULL, return -ENXIO);
return snd_device_new(card, SNDRV_DEV_CONTROL, card, &ops);
}
+
+/*
+ * Frequently used control callbacks
+ */
+int snd_ctl_boolean_mono_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+ uinfo->count = 1;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 1;
+ return 0;
+}
+
+EXPORT_SYMBOL(snd_ctl_boolean_mono_info);
+
+int snd_ctl_boolean_stereo_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+ uinfo->count = 2;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 1;
+ return 0;
+}
+
+EXPORT_SYMBOL(snd_ctl_boolean_stereo_info);
-
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