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[PATCH] Input: prepare to sysfs integration

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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>
This commit is contained in:
Dmitry Torokhov 2005-09-15 02:01:39 -05:00 • committed by Greg Kroah-Hartman
parent 4f00469c16
commit d19fbe8a76
2 changed files with 95 additions and 6 deletions
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24
include/linux/input.h
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@ -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 input_dev {
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 @@ static inline void init_input_dev(struct input_dev *dev)
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 *);