1 #ifndef _HIDRAW_H 2 #define _HIDRAW_H 3 4 /* 5 * Copyright (c) 2007 Jiri Kosina 6 */ 7 8 /* 9 * This program is free software; you can redistribute it and/or modify it 10 * under the terms and conditions of the GNU General Public License, 11 * version 2, as published by the Free Software Foundation. 12 * 13 * You should have received a copy of the GNU General Public License along with 14 * this program; if not, write to the Free Software Foundation, Inc., 15 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. 16 */ 17 18 #include <linux/hid.h> 19 20 struct hidraw_report_descriptor { 21 __u32 size; 22 __u8 value[HID_MAX_DESCRIPTOR_SIZE]; 23 }; 24 25 struct hidraw_devinfo { 26 __u32 bustype; 27 __s16 vendor; 28 __s16 product; 29 }; 30 31 /* ioctl interface */ 32 #define HIDIOCGRDESCSIZE _IOR('H', 0x01, int) 33 #define HIDIOCGRDESC _IOR('H', 0x02, struct hidraw_report_descriptor) 34 #define HIDIOCGRAWINFO _IOR('H', 0x03, struct hidraw_devinfo) 35 36 #define HIDRAW_FIRST_MINOR 0 37 #define HIDRAW_MAX_DEVICES 64 38 /* number of reports to buffer */ 39 #define HIDRAW_BUFFER_SIZE 64 40 41 42 /* kernel-only API declarations */ 43 #ifdef __KERNEL__ 44 45 struct hidraw { 46 unsigned int minor; 47 int exist; 48 int open; 49 wait_queue_head_t wait; 50 struct hid_device *hid; 51 struct device *dev; 52 struct list_head list; 53 }; 54 55 struct hidraw_report { 56 __u8 *value; 57 int len; 58 }; 59 60 struct hidraw_list { 61 struct hidraw_report buffer[HIDRAW_BUFFER_SIZE]; 62 int head; 63 int tail; 64 struct fasync_struct *fasync; 65 struct hidraw *hidraw; 66 struct list_head node; 67 struct mutex read_mutex; 68 }; 69 70 #ifdef CONFIG_HIDRAW 71 int hidraw_init(void); 72 void hidraw_exit(void); 73 void hidraw_report_event(struct hid_device *, u8 *, int); 74 int hidraw_connect(struct hid_device *); 75 void hidraw_disconnect(struct hid_device *); 76 #else 77 static inline int hidraw_init(void) { return 0; } 78 static inline void hidraw_exit(void) { } 79 static inline void hidraw_report_event(struct hid_device *hid, u8 *data, int len) { } 80 static inline int hidraw_connect(struct hid_device *hid) { return -1; } 81 static inline void hidraw_disconnect(struct hid_device *hid) { } 82 #endif 83 84 #endif 85 86 #endif 87