linux_input.h

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <fcntl.h>
#include <sys/ioctl.h>
//#include <linux/input.h> // this does not compile
#include <errno.h>
// from <linux/input.h>
struct input_event {
	struct timeval time;
	__u16 type;
	__u16 code;
	__s32 value;
};
#define EVIOCGVERSION		_IOR('E', 0x01, int)			/* get driver version */
#define EVIOCGID		_IOR('E', 0x02, struct input_id)	/* get device ID */
#define EVIOCGKEYCODE		_IOR('E', 0x04, int[2])			/* get keycode */
#define EVIOCSKEYCODE		_IOW('E', 0x04, int[2])			/* set keycode */
#define EVIOCGNAME(len)		_IOC(_IOC_READ, 'E', 0x06, len)		/* get device name */
#define EVIOCGPHYS(len)		_IOC(_IOC_READ, 'E', 0x07, len)		/* get physical location */
#define EVIOCGUNIQ(len)		_IOC(_IOC_READ, 'E', 0x08, len)		/* get unique identifier */
#define EVIOCGKEY(len)		_IOC(_IOC_READ, 'E', 0x18, len)		/* get global keystate */
#define EVIOCGLED(len)		_IOC(_IOC_READ, 'E', 0x19, len)		/* get all LEDs */
#define EVIOCGSND(len)		_IOC(_IOC_READ, 'E', 0x1a, len)		/* get all sounds status */
#define EVIOCGSW(len)		_IOC(_IOC_READ, 'E', 0x1b, len)		/* get all switch states */
#define EVIOCGBIT(ev,len)	_IOC(_IOC_READ, 'E', 0x20 + ev, len)	/* get event bits */
#define EVIOCGABS(abs)		_IOR('E', 0x40 + abs, struct input_absinfo)		/* get abs value/limits */
#define EVIOCSABS(abs)		_IOW('E', 0xc0 + abs, struct input_absinfo)		/* set abs value/limits */
#define EVIOCSFF		_IOC(_IOC_WRITE, 'E', 0x80, sizeof(struct ff_effect))	/* send a force effect to a force feedback device */
#define EVIOCRMFF		_IOW('E', 0x81, int)			/* Erase a force effect */
#define EVIOCGEFFECTS		_IOR('E', 0x84, int)			/* Report number of effects playable at the same time */
#define EVIOCGRAB		_IOW('E', 0x90, int)			/* Grab/Release device */
// end <linux/input.h>