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| author |   Takashi Iwai <tiwai@suse.de> | 2006-09-06 14:27:46 +0200 |
|---|---|---|
| committer |   Jaroslav Kysela <perex@suse.cz> | 2006-09-23 10:46:32 +0200 |
| commit | 9d19f48cfe2570562c2c6226780a7ca627b0f1f1 (patch) | |
| tree | dffe11da7daa0b27225c08badee58628923d961b /include/sound | |
| parent | [ALSA] hda-codec - Add independent headphone volume control (diff) | |
| download | linux-dev-9d19f48cfe2570562c2c6226780a7ca627b0f1f1.tar.xz linux-dev-9d19f48cfe2570562c2c6226780a7ca627b0f1f1.zip | |
[ALSA] Add pcm_class attribute to PCM sysfs entry
This patch adds a new attribute, pcm_class, to each PCM sysfs entry.
It's useful to detect what kind of PCM stream is, for example, HAL
can check whether it's a modem or not.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Diffstat (limited to 'include/sound')
| -rw-r--r-- | include/sound/core.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/sound/core.h b/include/sound/core.h index 1359c532b68e..b056ea925ecf 100644 --- a/include/sound/core.h +++ b/include/sound/core.h @@ -26,6 +26,7 @@ #include <linux/mutex.h> /* struct mutex */ #include <linux/rwsem.h> /* struct rw_semaphore */ #include <linux/pm.h> /* pm_message_t */ +#include <linux/device.h> /* forward declarations */ #ifdef CONFIG_PCI @@ -186,6 +187,7 @@ 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 */ }; /* sound.c */ @@ -200,6 +202,8 @@ int snd_register_device(int type, struct snd_card *card, int dev, const char *name); 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); #ifdef CONFIG_SND_OSSEMUL int snd_register_oss_device(int type, struct snd_card *card, int dev, |