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[ALSA] Nest sound devices

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Modules: ALSA Core

Make the control device parent of all other ALSA devices of a card.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
This commit is contained in:
Clemens Ladisch
2005-12-07 09:11:05 +01:00
committed by Jaroslav Kysela
parent 156b2aa3be
commit 416c1079d3
3 changed files with 11 additions and 3 deletions
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11
sound/core/sound.c
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@ -245,6 +245,7 @@ int snd_register_device(int type, struct snd_card *card, int dev,
int minor;
struct snd_minor *preg;
struct device *device = NULL;
struct class_device *class_device = NULL;
snd_assert(name, return -EINVAL);
preg = kmalloc(sizeof(struct snd_minor) + strlen(name) + 1, GFP_KERNEL);
@ -272,9 +273,15 @@ int snd_register_device(int type, struct snd_card *card, int dev,
snd_minors[minor] = preg;
if (type != SNDRV_DEVICE_TYPE_CONTROL || preg->card >= cards_limit)
devfs_mk_cdev(MKDEV(major, minor), S_IFCHR | device_mode, "snd/%s", name);
if (card)
if (card) {
device = card->dev;
class_device_create(sound_class, NULL, MKDEV(major, minor), device, "%s", name);
class_device = card->parent_device;
}
class_device = class_device_create(sound_class, class_device,
MKDEV(major, minor), device,
"%s", name);
if (type == SNDRV_DEVICE_TYPE_CONTROL)
card->parent_device = class_device;
up(&sound_mutex);
return 0;