GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-06-26 08:31:13 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Driver core: convert sound core to use struct device

Browse source 
Converts from using struct "class_device" to "struct device" making
everything show up properly in /sys/devices/ with symlinks from the
/sys/class directory.

It also makes the struct sound_card to show up as a "real" device
where all the different sound class devices are placed as childs
and different card attribute files can hang off of. /sys/class/sound is
still a flat directory, but the symlink targets of all devices belonging
to the same card, point the the /sys/devices tree below the new card
device object.

Thanks to Kay for the updates to this patch.

Signed-off-by: Kay Sievers <kay.sievers@novell.com>
Acked-by: Jaroslav Kysela <perex@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Greg Kroah-Hartman 2006-08-07 22:19:37 -07:00
parent ebf644c462
commit d80f19fab8
6 changed files with 37 additions and 30 deletions
Download patch file Download diff file Expand all files Collapse all files

22
sound/core/sound.c
View file

@ -61,9 +61,6 @@ EXPORT_SYMBOL(snd_ecards_limit);
static struct snd_minor *snd_minors[SNDRV_OS_MINORS];
static DEFINE_MUTEX(sound_mutex);
extern struct class *sound_class;
#ifdef CONFIG_KMOD
/**
@ -268,11 +265,10 @@ int snd_register_device(int type, struct snd_card *card, int dev,
snd_minors[minor] = preg;
if (card)
device = card->dev;
preg->class_dev = class_device_create(sound_class, NULL,
MKDEV(major, minor),
device, "%s", name);
if (preg->class_dev)
class_set_devdata(preg->class_dev, private_data);
preg->dev = device_create(sound_class, device, MKDEV(major, minor),
"%s", name);
if (preg->dev)
dev_set_drvdata(preg->dev, private_data);
mutex_unlock(&sound_mutex);
return 0;
@ -320,7 +316,7 @@ int snd_unregister_device(int type, struct snd_card *card, int dev)
return -EINVAL;
}
class_device_destroy(sound_class, MKDEV(major, minor));
device_destroy(sound_class, MKDEV(major, minor));
kfree(snd_minors[minor]);
snd_minors[minor] = NULL;
@ -331,15 +327,15 @@ int snd_unregister_device(int type, struct snd_card *card, int dev)
EXPORT_SYMBOL(snd_unregister_device);
int snd_add_device_sysfs_file(int type, struct snd_card *card, int dev,
const struct class_device_attribute *attr)
struct device_attribute *attr)
{
int minor, ret = -EINVAL;
struct class_device *cdev;
struct device *d;
mutex_lock(&sound_mutex);
minor = find_snd_minor(type, card, dev);
if (minor >= 0 && (cdev = snd_minors[minor]->class_dev) != NULL)
ret = class_device_create_file(cdev, attr);
if (minor >= 0 && (d = snd_minors[minor]->dev) != NULL)
ret = device_create_file(d, attr);
mutex_unlock(&sound_mutex);
return ret;