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author | Clemens Ladisch <clemens@ladisch.de> | 2005-11-20 14:06:59 +0100 |
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committer | Jaroslav Kysela <perex@suse.cz> | 2006-01-03 12:29:17 +0100 |
commit | f87135f56cb266e031f5ec081dfbde7e43f55e80 (patch) | |
tree | c048abae6bb04df53f5d8d7dcffbf2c28bc638ff /include/sound/core.h | |
parent | 6983b7240cd229787c3ee00e663ea94ea649d96a (diff) | |
download | blackbird-op-linux-f87135f56cb266e031f5ec081dfbde7e43f55e80.tar.gz blackbird-op-linux-f87135f56cb266e031f5ec081dfbde7e43f55e80.zip |
[ALSA] dynamic minors (3/6): store device-specific object pointers dynamically
Instead of storing the pointers to the device-specific structures in an
array, put them into the struct snd_minor, and look them up dynamically.
This makes the device type modules independent of the minor number
encoding.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Diffstat (limited to 'include/sound/core.h')
-rw-r--r-- | include/sound/core.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/include/sound/core.h b/include/sound/core.h index 67b0a7e764e7..90ac6132ea3b 100644 --- a/include/sound/core.h +++ b/include/sound/core.h @@ -187,6 +187,7 @@ struct snd_minor { int card; /* card number */ int device; /* device number */ struct file_operations *f_ops; /* file operations */ + void *private_data; /* private data for f_ops->open */ char name[0]; /* device name (keep at the end of structure) */ }; @@ -199,13 +200,17 @@ extern int snd_ecards_limit; void snd_request_card(int card); int snd_register_device(int type, struct snd_card *card, int dev, - struct file_operations *f_ops, const char *name); + struct file_operations *f_ops, void *private_data, + 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); #ifdef CONFIG_SND_OSSEMUL int snd_register_oss_device(int type, struct snd_card *card, int dev, - struct file_operations *f_ops, const char *name); + struct file_operations *f_ops, void *private_data, + const char *name); int snd_unregister_oss_device(int type, struct snd_card *card, int dev); +void *snd_lookup_oss_minor_data(unsigned int minor, int type); #endif int snd_minor_info_init(void); |