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Diffstat (limited to 'include/linux/device.h')
-rw-r--r--include/linux/device.h9
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 {