[ALSA] Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.cz

[net-next-2.6.git] / sound / core / control.c

diff --git a/sound/core/control.c b/sound/core/control.c
index 42bcf2794b285dd14bc89d8b9cb8cc11686d2037..4c3aa8e10378bd306763dba42f16b6b9a564ebd5 100644 (file)
--- a/sound/core/control.c
+++ b/sound/core/control.c
@@ -1,6 +1,6 @@
 /*
  *  Routines for driver control interface
- *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
  *
  *
  *   This program is free software; you can redistribute it and/or modify
@@ -22,7 +22,6 @@
 #include <sound/driver.h>
 #include <linux/threads.h>
 #include <linux/interrupt.h>
-#include <linux/smp_lock.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
 #include <linux/time.h>
@@ -717,8 +716,6 @@ int snd_ctl_elem_read(struct snd_card *card, struct snd_ctl_elem_value *control)
        return result;
 }
 
-EXPORT_SYMBOL(snd_ctl_elem_read);
-
 static int snd_ctl_elem_read_user(struct snd_card *card,
                                  struct snd_ctl_elem_value __user *_control)
 {
@@ -782,8 +779,6 @@ int snd_ctl_elem_write(struct snd_card *card, struct snd_ctl_file *file,
        return result;
 }
 
-EXPORT_SYMBOL(snd_ctl_elem_write);
-
 static int snd_ctl_elem_write_user(struct snd_ctl_file *file,
                                   struct snd_ctl_elem_value __user *_control)
 {
@@ -1398,7 +1393,7 @@ static int snd_ctl_fasync(int fd, struct file * file, int on)
  *  INIT PART
  */
 
-static struct file_operations snd_ctl_f_ops =
+static const struct file_operations snd_ctl_f_ops =
 {
        .owner =        THIS_MODULE,
        .read =         snd_ctl_read,
@@ -1487,3 +1482,30 @@ 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);