GitHub-Mirror/linux-bl808
2
0
Fork 0
mirror of https://github.com/Fishwaldo/linux-bl808.git synced 2025-06-17 20:25:19 +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

8
include/sound/core.h
View file

@ -132,6 +132,7 @@ struct snd_card {
int shutdown; /* this card is going down */
int free_on_last_close; /* free in context of file_release */
wait_queue_head_t shutdown_sleep;
struct device *parent;
struct device *dev;
#ifdef CONFIG_PM
@ -187,13 +188,14 @@ struct snd_minor {
int device; /* device number */
const struct file_operations *f_ops; /* file operations */
void *private_data; /* private data for f_ops->open */
struct class_device *class_dev; /* class device for sysfs */
struct device *dev; /* device for sysfs */
};
/* sound.c */
extern int snd_major;
extern int snd_ecards_limit;
extern struct class *sound_class;
void snd_request_card(int card);
@ -203,7 +205,7 @@ int snd_register_device(int type, struct snd_card *card, int dev,
int snd_unregister_device(int type, struct snd_card *card, int dev);
void *snd_lookup_minor_data(unsigned int minor, int type);
int snd_add_device_sysfs_file(int type, struct snd_card *card, int dev,
const struct class_device_attribute *attr);
struct device_attribute *attr);
#ifdef CONFIG_SND_OSSEMUL
int snd_register_oss_device(int type, struct snd_card *card, int dev,
@ -255,7 +257,7 @@ int snd_card_file_add(struct snd_card *card, struct file *file);
int snd_card_file_remove(struct snd_card *card, struct file *file);
#ifndef snd_card_set_dev
#define snd_card_set_dev(card,devptr) ((card)->dev = (devptr))
#define snd_card_set_dev(card,devptr) ((card)->parent = (devptr))
#endif
/* device.c */