diff options
| author |   Dave Young <hidave.darkstar@gmail.com> | 2008-01-22 15:27:08 +0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2008-01-24 20:40:44 -0800 |
| commit | fd04897bb20be29d60f7e426a053545aebeaa61a (patch) | |
| tree | 7cd86b2d9de79a70bdeb32997240af5e28be6d03 /include | |
| parent | Driver core: Cleanup get_device_parent() in device_add() and device_move() (diff) | |
| download | linux-dev-fd04897bb20be29d60f7e426a053545aebeaa61a.tar.xz linux-dev-fd04897bb20be29d60f7e426a053545aebeaa61a.zip | |
Driver Core: add class iteration api
Add the following class iteration functions for driver use:
class_for_each_device
class_find_device
class_for_each_child
class_find_child
Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/device.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/include/linux/device.h b/include/linux/device.h index 92ba3a874627..cdaf57bf4d19 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -177,8 +177,7 @@ struct class { struct list_head devices; struct list_head interfaces; struct kset class_dirs; - struct semaphore sem; /* locks both the children and interfaces lists */ - + struct semaphore sem; /* locks children, devices, interfaces */ struct class_attribute * class_attrs; struct class_device_attribute * class_dev_attrs; struct device_attribute * dev_attrs; @@ -196,6 +195,12 @@ struct class { extern int __must_check class_register(struct class *); extern void class_unregister(struct class *); +extern int class_for_each_device(struct class *class, void *data, + int (*fn)(struct device *dev, void *data)); +extern struct device *class_find_device(struct class *class, void *data, + int (*match)(struct device *, void *)); +extern struct class_device *class_find_child(struct class *class, void *data, + int (*match)(struct class_device *, void *)); struct class_attribute { |