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 #include <linux/types.h> 20 21 struct hidraw_report_descriptor { 22 __u32 size; 23 __u8 value[HID_MAX_DESCRIPTOR_SIZE]; 24 }; 25 26 struct hidraw_devinfo { 27 __u32 bustype; 28 __s16 vendor; 29 __s16 product; 30 }; 31 32 /* ioctl interface */ 33 #define HIDIOCGRDESCSIZE _IOR('H', 0x01, int) 34 #define HIDIOCGRDESC _IOR('H', 0x02, struct hidraw_report_descriptor) 35 #define HIDIOCGRAWINFO _IOR('H', 0x03, struct hidraw_devinfo) 36 37 #define HIDRAW_FIRST_MINOR 0 38 #define HIDRAW_MAX_DEVICES 64 39 /* number of reports to buffer */ 40 #define HIDRAW_BUFFER_SIZE 64 41 42 43 /* kernel-only API declarations */ 44 #ifdef __KERNEL__ 45 46 struct hidraw { 47 unsigned int minor; 48 int exist; 49 int open; 50 wait_queue_head_t wait; 51 struct hid_device *hid; 52 struct device *dev; 53 struct list_head list; 54 }; 55 56 struct hidraw_report { 57 __u8 *value; 58 int len; 59 }; 60 61 struct hidraw_list { 62 struct hidraw_report buffer[HIDRAW_BUFFER_SIZE]; 63 int head; 64 int tail; 65 struct fasync_struct *fasync; 66 struct hidraw *hidraw; 67 struct list_head node; 68 struct mutex read_mutex; 69 }; 70 71 #ifdef CONFIG_HIDRAW 72 int hidraw_init(void); 73 void hidraw_exit(void); 74 void hidraw_report_event(struct hid_device *, u8 *, int); 75 int hidraw_connect(struct hid_device *); 76 void hidraw_disconnect(struct hid_device *); 77 #else 78 static inline int hidraw_init(void) { return 0; } 79 static inline void hidraw_exit(void) { } 80 static inline void hidraw_report_event(struct hid_device *hid, u8 *data, int len) { } 81 static inline int hidraw_connect(struct hid_device *hid) { return -1; } 82 static inline void hidraw_disconnect(struct hid_device *hid) { } 83 #endif 84 85 #endif 86 87 #endif 88