kernel.git/sound/core/init.c, branch linux-2.6.20.y

[PATCH] ALSA: Fix sysfs breakage

2007-01-29T22:32:53Z

The recent change for a new sysfs tree with card* object breaks the /sys/class/sound tree if CONFIG_SYSFS_DEPRECATED is enabled. The device in each entry doesn't point the correct device object: /sys/class/sound ... |-- pcmC0D0c | |-- dev | |-- device -> ../../../class/sound/card0 | |-- pcm_class | |-- power | | `-- wakeup | |-- subsystem -> ../../../class/sound | `-- uevent Also, this change breaks some drivers (like sound/arm/*) referring card->dev directly to obtain the device object for memory handling. This patch reverts the semantics of card->dev to the former version, which points to a real device object. The card* object is stored in a new card->card_dev field, instead. The device parent is chosen either card->dev or card->card_dev according to CONFIG_SYSFS_DEPRECATED to keep the tree compatibility. Also, card* isn't created if CONFIG_SYSFS_DEPRECATED is enabled. The reason of card* object is a root of all beloing devices, and it makes little sense if each sound device points to the real device object directly. Signed-off-by: Takashi Iwai Acked-by: Monty Montgomery Signed-off-by: Greg Kroah-Hartman

Driver core: convert sound core to use struct device

2006-12-01T22:52:01Z

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 Acked-by: Jaroslav Kysela Signed-off-by: Greg Kroah-Hartman

[ALSA] Handle file operations during snd_card disconnects using static file->f_op

2006-10-06T18:23:04Z

Alsa used to kmalloc one file->f_op per file per disconnecting snd_card. This led to oopses sometimes when file->f_op was freed before __fput() finished. Patch adds a virtual device for disconnect: VDD. VDD consists of: LIST_HEAD(shutdown_files) protected by DEFINE_SPINLOCK(shutdown_mutex) static struct file_operations snd_shutdown_f_ops and functions assigned to it Additions to struct snd_monitor_file to specify if instance is hidden by VDD or not. A VDD's instance is created in snd_card_disconnect() under the card->files_lock. cleaned up in snd_card_file_remove() under the card->files_lock. Signed-off-by: Karsten Wiese Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela

[ALSA] Deprecate snd_card_free_in_thread()

2006-09-23T08:37:03Z

Deprecated snd_card_free_in_thread(), replaced with snd_card_free_when_closed(). Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela

[ALSA] Unregister device files at disconnection

2006-09-23T08:36:58Z

Orignally proposed by Sam Revitch . Unregister device files at disconnection to avoid the futher accesses. Also, the dev_unregister callback is removed and replaced with the combination of disconnect + free. A new function snd_card_free_when_closed() is introduced, which is used in USB disconnect callback. Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela

[ALSA] Fix disconnection of proc interface

2006-09-23T08:36:48Z

- Add the linked list to each proc entry to enable a single-shot disconnection (unregister) - Deprecate snd_info_unregister(), use snd_info_free_entry() - Removed NULL checks of snd_info_free_entry() Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela

[ALSA] Remove zero-initialization of static variables

2006-06-22T19:33:45Z

Removed zero-initializations of static variables. A tiny optimization. Signed-off-by: Takashi Iwai

[ALSA] Fix rwlock around snd_iprintf() in sound core

2006-06-22T19:33:37Z

Fixed rwlock around snd_iprintf() in sound core part. Replaced with mutex. Also, make mutex and flags static variables with addition of snd_card_locked() function (just for sound.c). Signed-off-by: Takashi Iwai

[ALSA] Remove unneeded read/write_size fields in proc text ops

2006-06-22T19:33:09Z

Remove unneeded read/write_size fields in proc text ops. snd_info_set_text_ops() is fixed, too. Signed-off-by: Takashi Iwai

[ALSA] Clean up EXPORT_SYMBOL()s in snd module

2006-06-22T19:32:52Z

Move EXPORT_SYMBOL()s to places adjacent to functions/variables. Signed-off-by: Takashi Iwai