hidraw.h 1.49 KB
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/*
 *  Copyright (c) 2007 Jiri Kosina
 */
/*
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
 */
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#ifndef _HIDRAW_H
#define _HIDRAW_H
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#include <uapi/linux/hidraw.h>
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struct hidraw {
	unsigned int minor;
	int exist;
	int open;
	wait_queue_head_t wait;
	struct hid_device *hid;
	struct device *dev;
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	spinlock_t list_lock;
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	struct list_head list;
};

struct hidraw_report {
	__u8 *value;
	int len;
};

struct hidraw_list {
	struct hidraw_report buffer[HIDRAW_BUFFER_SIZE];
	int head;
	int tail;
	struct fasync_struct *fasync;
	struct hidraw *hidraw;
	struct list_head node;
	struct mutex read_mutex;
};

#ifdef CONFIG_HIDRAW
int hidraw_init(void);
void hidraw_exit(void);
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int hidraw_report_event(struct hid_device *, u8 *, int);
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int hidraw_connect(struct hid_device *);
void hidraw_disconnect(struct hid_device *);
#else
static inline int hidraw_init(void) { return 0; }
static inline void hidraw_exit(void) { }
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static inline int hidraw_report_event(struct hid_device *hid, u8 *data, int len) { return 0; }
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static inline int hidraw_connect(struct hid_device *hid) { return -1; }
static inline void hidraw_disconnect(struct hid_device *hid) { }
#endif

#endif