[PATCH] Input: prepare to sysfs integration
Input: prepare to sysfs integration
Add struct class_device to input_dev; add input_allocate_dev()
to dynamically allocate input devices; dynamically allocated
devices are automatically registered with sysfs.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/include/linux/input.h b/include/linux/input.h
index e8c296f..3defa29 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -12,6 +12,7 @@
#ifdef __KERNEL__
#include <linux/time.h>
#include <linux/list.h>
+#include <linux/device.h>
#else
#include <sys/time.h>
#include <sys/ioctl.h>
@@ -889,11 +890,15 @@
struct semaphore sem; /* serializes open and close operations */
unsigned int users;
- struct device *dev;
+ struct class_device cdev;
+ struct device *dev; /* will be removed soon */
+
+ int dynalloc; /* temporarily */
struct list_head h_list;
struct list_head node;
};
+#define to_input_dev(d) container_of(d, struct input_dev, cdev)
/*
* Structure for hotplug & device<->driver matching.
@@ -984,6 +989,23 @@
INIT_LIST_HEAD(&dev->node);
}
+struct input_dev *input_allocate_device(void);
+
+static inline void input_free_device(struct input_dev *dev)
+{
+ kfree(dev);
+}
+
+static inline struct input_dev *input_get_device(struct input_dev *dev)
+{
+ return to_input_dev(class_device_get(&dev->cdev));
+}
+
+static inline void input_put_device(struct input_dev *dev)
+{
+ class_device_put(&dev->cdev);
+}
+
void input_register_device(struct input_dev *);
void input_unregister_device(struct input_dev *);