/* *  Copyright (c) 1999-2000 Vojtech Pavlik * *  Sponsored by SuSE *//* * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or  * (at your option) any later version. *  * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. *  * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *  * Should you need to contact me, the author, you can do so either by * e-mail - mail your message to <vojtech@suse.cz>, or by paper mail: * Vojtech Pavlik, Ucitelska 1576, Prague 8, 182 00 Czech Republic */#ifndef _UAPI_HIDDEV_H#define _UAPI_HIDDEV_H   #include <linux/types.h> /* * The event structure itself */ struct hiddev_event {	unsigned hid;	signed int value;}; struct hiddev_devinfo {	__u32 bustype;	__u32 busnum;	__u32 devnum;	__u32 ifnum;	__s16 vendor;	__s16 product;	__s16 version;	__u32 num_applications;}; struct hiddev_collection_info {	__u32 index;	__u32 type;	__u32 usage;	__u32 level;}; #define HID_STRING_SIZE 256struct hiddev_string_descriptor {	__s32 index;	char value[HID_STRING_SIZE];}; struct hiddev_report_info {	__u32 report_type;	__u32 report_id;	__u32 num_fields;}; /* To do a GUSAGE/SUSAGE, fill in at least usage_code,  report_type and  * report_id.  Set report_id to REPORT_ID_UNKNOWN if the rest of the fields  * are unknown.  Otherwise use a usage_ref struct filled in from a previous  * successful GUSAGE call to save time.  To actually send a value to the * device, perform a SUSAGE first, followed by a SREPORT.  An INITREPORT or a * GREPORT isn't necessary for a GUSAGE to return valid data. */#define HID_REPORT_ID_UNKNOWN 0xffffffff#define HID_REPORT_ID_FIRST   0x00000100#define HID_REPORT_ID_NEXT    0x00000200#define HID_REPORT_ID_MASK    0x000000ff#define HID_REPORT_ID_MAX     0x000000ff #define HID_REPORT_TYPE_INPUT	1#define HID_REPORT_TYPE_OUTPUT	2#define HID_REPORT_TYPE_FEATURE	3#define HID_REPORT_TYPE_MIN     1#define HID_REPORT_TYPE_MAX     3 struct hiddev_field_info {	__u32 report_type;	__u32 report_id;	__u32 field_index;	__u32 maxusage;	__u32 flags;	__u32 physical;		/* physical usage for this field */	__u32 logical;		/* logical usage for this field */	__u32 application;		/* application usage for this field */	__s32 logical_minimum;	__s32 logical_maximum;	__s32 physical_minimum;	__s32 physical_maximum;	__u32 unit_exponent;	__u32 unit;}; /* Fill in report_type, report_id and field_index to get the information on a * field. */#define HID_FIELD_CONSTANT		0x001#define HID_FIELD_VARIABLE		0x002#define HID_FIELD_RELATIVE		0x004#define HID_FIELD_WRAP			0x008	#define HID_FIELD_NONLINEAR		0x010#define HID_FIELD_NO_PREFERRED		0x020#define HID_FIELD_NULL_STATE		0x040#define HID_FIELD_VOLATILE		0x080#define HID_FIELD_BUFFERED_BYTE		0x100 struct hiddev_usage_ref {	__u32 report_type;	__u32 report_id;	__u32 field_index;	__u32 usage_index;	__u32 usage_code;	__s32 value;}; /* hiddev_usage_ref_multi is used for sending multiple bytes to a control. * It really manifests itself as setting the value of consecutive usages */#define HID_MAX_MULTI_USAGES 1024struct hiddev_usage_ref_multi {	struct hiddev_usage_ref uref;	__u32 num_values;	__s32 values[HID_MAX_MULTI_USAGES];}; /* FIELD_INDEX_NONE is returned in read() data from the kernel when flags * is set to (HIDDEV_FLAG_UREF | HIDDEV_FLAG_REPORT) and a new report has * been sent by the device  */#define HID_FIELD_INDEX_NONE 0xffffffff /* * Protocol version. */ #define HID_VERSION		0x010004 /* * IOCTLs (0x00 - 0x7f) */ #define HIDIOCGVERSION		_IOR('H', 0x01, int)#define HIDIOCAPPLICATION	_IO('H', 0x02)#define HIDIOCGDEVINFO		_IOR('H', 0x03, struct hiddev_devinfo)#define HIDIOCGSTRING		_IOR('H', 0x04, struct hiddev_string_descriptor)#define HIDIOCINITREPORT	_IO('H', 0x05)#define HIDIOCGNAME(len)	_IOC(_IOC_READ, 'H', 0x06, len)#define HIDIOCGREPORT		_IOW('H', 0x07, struct hiddev_report_info)#define HIDIOCSREPORT		_IOW('H', 0x08, struct hiddev_report_info)#define HIDIOCGREPORTINFO	_IOWR('H', 0x09, struct hiddev_report_info)#define HIDIOCGFIELDINFO	_IOWR('H', 0x0A, struct hiddev_field_info)#define HIDIOCGUSAGE		_IOWR('H', 0x0B, struct hiddev_usage_ref)#define HIDIOCSUSAGE		_IOW('H', 0x0C, struct hiddev_usage_ref)#define HIDIOCGUCODE		_IOWR('H', 0x0D, struct hiddev_usage_ref)#define HIDIOCGFLAG		_IOR('H', 0x0E, int)#define HIDIOCSFLAG		_IOW('H', 0x0F, int)#define HIDIOCGCOLLECTIONINDEX	_IOW('H', 0x10, struct hiddev_usage_ref)#define HIDIOCGCOLLECTIONINFO	_IOWR('H', 0x11, struct hiddev_collection_info)#define HIDIOCGPHYS(len)	_IOC(_IOC_READ, 'H', 0x12, len) /* For writing/reading to multiple/consecutive usages */#define HIDIOCGUSAGES		_IOWR('H', 0x13, struct hiddev_usage_ref_multi)#define HIDIOCSUSAGES		_IOW('H', 0x14, struct hiddev_usage_ref_multi) /*  * Flags to be used in HIDIOCSFLAG */#define HIDDEV_FLAG_UREF	0x1#define HIDDEV_FLAG_REPORT	0x2#define HIDDEV_FLAGS		0x3 /* To traverse the input report descriptor info for a HID device, perform the  * following: * * rinfo.report_type = HID_REPORT_TYPE_INPUT; * rinfo.report_id = HID_REPORT_ID_FIRST; * ret = ioctl(fd, HIDIOCGREPORTINFO, &rinfo); * * while (ret >= 0) { * 	for (i = 0; i < rinfo.num_fields; i++) { * 		finfo.report_type = rinfo.report_type; * 		finfo.report_id = rinfo.report_id; * 		finfo.field_index = i; * 		ioctl(fd, HIDIOCGFIELDINFO, &finfo); * 		for (j = 0; j < finfo.maxusage; j++) { * 			uref.report_type = rinfo.report_type; * 			uref.report_id = rinfo.report_id; * 			uref.field_index = i; * 			uref.usage_index = j; * 			ioctl(fd, HIDIOCGUCODE, &uref); * 			ioctl(fd, HIDIOCGUSAGE, &uref); * 		} * 	} * 	rinfo.report_id |= HID_REPORT_ID_NEXT; * 	ret = ioctl(fd, HIDIOCGREPORTINFO, &rinfo); * } */  #endif /* _UAPI_HIDDEV_H */