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-rw-r--r--include/linux/device.h13
1 files changed, 10 insertions, 3 deletions
diff --git a/include/linux/device.h b/include/linux/device.h
index e86a580b72e186..226e550ae2ea6e 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -213,7 +213,11 @@ struct class_device {
struct class_device_attribute uevent_attr;
struct device * dev; /* not necessary, but nice to have */
void * class_data; /* class-specific data */
+ struct class_device *parent; /* parent of this child device, if there is one */
+ void (*release)(struct class_device *dev);
+ int (*hotplug)(struct class_device *dev, char **envp,
+ int num_envp, char *buffer, int buffer_size);
char class_id[BUS_ID_SIZE]; /* unique to this class */
};
@@ -261,9 +265,12 @@ extern void class_interface_unregister(struct class_interface *);
extern struct class *class_create(struct module *owner, char *name);
extern void class_destroy(struct class *cls);
-extern struct class_device *class_device_create(struct class *cls, dev_t devt,
- struct device *device, char *fmt, ...)
- __attribute__((format(printf,4,5)));
+extern struct class_device *class_device_create(struct class *cls,
+ struct class_device *parent,
+ dev_t devt,
+ struct device *device,
+ char *fmt, ...)
+ __attribute__((format(printf,5,6)));
extern void class_device_destroy(struct class *cls, dev_t devt);