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authorTakashi Iwai <tiwai@suse.de>2005-08-30 08:58:37 +0200
committerJaroslav Kysela <perex@suse.cz>2005-08-30 08:58:37 +0200
commitd568121ce3151c36cc4718dd4e977f217c6144c2 (patch)
treeee61f946a485c7cbe74c888d53ea7775aeef7444 /sound/sound_core.c
parent68c339d9068502347015ce462530ec54c4d841e4 (diff)
downloadlinux-linaro-d568121ce3151c36cc4718dd4e977f217c6144c2.tar.gz
[PATCH] Assign device pointer to OSS devices
Add register_sound_special_device() function to allow assignment of device pointer to a specific OSS device for HAL. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/sound_core.c')
-rw-r--r--sound/sound_core.c27
1 files changed, 18 insertions, 9 deletions
diff --git a/sound/sound_core.c b/sound/sound_core.c
index 21a69e09622..954f994592a 100644
--- a/sound/sound_core.c
+++ b/sound/sound_core.c
@@ -153,7 +153,7 @@ static DEFINE_SPINLOCK(sound_loader_lock);
* list. Acquires locks as needed
*/
-static int sound_insert_unit(struct sound_unit **list, struct file_operations *fops, int index, int low, int top, const char *name, umode_t mode)
+static int sound_insert_unit(struct sound_unit **list, struct file_operations *fops, int index, int low, int top, const char *name, umode_t mode, struct device *dev)
{
struct sound_unit *s = kmalloc(sizeof(*s), GFP_KERNEL);
int r;
@@ -175,7 +175,7 @@ static int sound_insert_unit(struct sound_unit **list, struct file_operations *f
devfs_mk_cdev(MKDEV(SOUND_MAJOR, s->unit_minor),
S_IFCHR | mode, s->name);
class_device_create(sound_class, MKDEV(SOUND_MAJOR, s->unit_minor),
- NULL, s->name+6);
+ dev, s->name+6);
return r;
fail:
@@ -227,16 +227,18 @@ static void sound_remove_unit(struct sound_unit **list, int unit)
static struct sound_unit *chains[SOUND_STEP];
/**
- * register_sound_special - register a special sound node
+ * register_sound_special_device - register a special sound node
* @fops: File operations for the driver
* @unit: Unit number to allocate
+ * @dev: device pointer
*
* Allocate a special sound device by minor number from the sound
* subsystem. The allocated number is returned on succes. On failure
* a negative error code is returned.
*/
-int register_sound_special(struct file_operations *fops, int unit)
+int register_sound_special_device(struct file_operations *fops, int unit,
+ struct device *dev)
{
const int chain = unit % SOUND_STEP;
int max_unit = 128 + chain;
@@ -294,9 +296,16 @@ int register_sound_special(struct file_operations *fops, int unit)
break;
}
return sound_insert_unit(&chains[chain], fops, -1, unit, max_unit,
- name, S_IRUSR | S_IWUSR);
+ name, S_IRUSR | S_IWUSR, dev);
}
+EXPORT_SYMBOL(register_sound_special_device);
+
+int register_sound_special(struct file_operations *fops, int unit)
+{
+ return register_sound_special_device(fops, unit, NULL);
+}
+
EXPORT_SYMBOL(register_sound_special);
/**
@@ -312,7 +321,7 @@ EXPORT_SYMBOL(register_sound_special);
int register_sound_mixer(struct file_operations *fops, int dev)
{
return sound_insert_unit(&chains[0], fops, dev, 0, 128,
- "mixer", S_IRUSR | S_IWUSR);
+ "mixer", S_IRUSR | S_IWUSR, NULL);
}
EXPORT_SYMBOL(register_sound_mixer);
@@ -330,7 +339,7 @@ EXPORT_SYMBOL(register_sound_mixer);
int register_sound_midi(struct file_operations *fops, int dev)
{
return sound_insert_unit(&chains[2], fops, dev, 2, 130,
- "midi", S_IRUSR | S_IWUSR);
+ "midi", S_IRUSR | S_IWUSR, NULL);
}
EXPORT_SYMBOL(register_sound_midi);
@@ -356,7 +365,7 @@ EXPORT_SYMBOL(register_sound_midi);
int register_sound_dsp(struct file_operations *fops, int dev)
{
return sound_insert_unit(&chains[3], fops, dev, 3, 131,
- "dsp", S_IWUSR | S_IRUSR);
+ "dsp", S_IWUSR | S_IRUSR, NULL);
}
EXPORT_SYMBOL(register_sound_dsp);
@@ -375,7 +384,7 @@ EXPORT_SYMBOL(register_sound_dsp);
int register_sound_synth(struct file_operations *fops, int dev)
{
return sound_insert_unit(&chains[9], fops, dev, 9, 137,
- "synth", S_IRUSR | S_IWUSR);
+ "synth", S_IRUSR | S_IWUSR, NULL);
}
EXPORT_SYMBOL(register_sound_synth);