-#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 256
-struct 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 1024
-struct 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);
- * }
- */
-