/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ /* * 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 <[email protected]>, 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 { … }; struct hiddev_devinfo { … }; struct hiddev_collection_info { … }; #define HID_STRING_SIZE … struct hiddev_string_descriptor { … }; struct hiddev_report_info { … }; /* 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 … #define HID_REPORT_ID_FIRST … #define HID_REPORT_ID_NEXT … #define HID_REPORT_ID_MASK … #define HID_REPORT_ID_MAX … #define HID_REPORT_TYPE_INPUT … #define HID_REPORT_TYPE_OUTPUT … #define HID_REPORT_TYPE_FEATURE … #define HID_REPORT_TYPE_MIN … #define HID_REPORT_TYPE_MAX … struct hiddev_field_info { … }; /* Fill in report_type, report_id and field_index to get the information on a * field. */ #define HID_FIELD_CONSTANT … #define HID_FIELD_VARIABLE … #define HID_FIELD_RELATIVE … #define HID_FIELD_WRAP … #define HID_FIELD_NONLINEAR … #define HID_FIELD_NO_PREFERRED … #define HID_FIELD_NULL_STATE … #define HID_FIELD_VOLATILE … #define HID_FIELD_BUFFERED_BYTE … struct hiddev_usage_ref { … }; /* 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 … struct hiddev_usage_ref_multi { … }; /* 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 … /* * Protocol version. */ #define HID_VERSION … /* * IOCTLs (0x00 - 0x7f) */ #define HIDIOCGVERSION … #define HIDIOCAPPLICATION … #define HIDIOCGDEVINFO … #define HIDIOCGSTRING … #define HIDIOCINITREPORT … #define HIDIOCGNAME(len) … #define HIDIOCGREPORT … #define HIDIOCSREPORT … #define HIDIOCGREPORTINFO … #define HIDIOCGFIELDINFO … #define HIDIOCGUSAGE … #define HIDIOCSUSAGE … #define HIDIOCGUCODE … #define HIDIOCGFLAG … #define HIDIOCSFLAG … #define HIDIOCGCOLLECTIONINDEX … #define HIDIOCGCOLLECTIONINFO … #define HIDIOCGPHYS(len) … /* For writing/reading to multiple/consecutive usages */ #define HIDIOCGUSAGES … #define HIDIOCSUSAGES … /* * Flags to be used in HIDIOCSFLAG */ #define HIDDEV_FLAG_UREF … #define HIDDEV_FLAG_REPORT … #define HIDDEV_FLAGS … /* 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 */
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