0x00160000  h0x001d0000 *l=J!e8Ep Tţ |N_I|+$-/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ /* * User level driver support for input subsystem * * Heavily based on evdev.c by Vojtech Pavlik * * 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 * * Author: Aristeu Sergio Rozanski Filho * * Changes/Revisions: * 0.5 08/13/2015 (David Herrmann & * Benjamin Tissoires ) * - add UI_DEV_SETUP ioctl * - add UI_ABS_SETUP ioctl * - add UI_GET_VERSION ioctl * 0.4 01/09/2014 (Benjamin Tissoires ) * - add UI_GET_SYSNAME ioctl * 0.3 24/05/2006 (Anssi Hannula ) * - update ff support for the changes in kernel interface * - add UINPUT_VERSION * 0.2 16/10/2004 (Micah Dowty ) * - added force feedback support * - added UI_SET_PHYS * 0.1 20/06/2002 * - first public version */ #ifndef __UINPUT_H_ #define __UINPUT_H_ #include #include #define UINPUT_VERSION 5 #define UINPUT_MAX_NAME_SIZE 80 struct uinput_ff_upload { __u32 request_id; __s32 retval; struct ff_effect effect; struct ff_effect old; }; struct uinput_ff_erase { __u32 request_id; __s32 retval; __u32 effect_id; }; /* ioctl */ #define UINPUT_IOCTL_BASE 'U' #define UI_DEV_CREATE _IO(UINPUT_IOCTL_BASE, 1) #define UI_DEV_DESTROY _IO(UINPUT_IOCTL_BASE, 2) struct uinput_setup { struct input_id id; char name[UINPUT_MAX_NAME_SIZE]; __u32 ff_effects_max; }; /** * UI_DEV_SETUP - Set device parameters for setup * * This ioctl sets parameters for the input device to be created. It * supersedes the old "struct uinput_user_dev" method, which wrote this data * via write(). To actually set the absolute axes UI_ABS_SETUP should be * used. * * The ioctl takes a "struct uinput_setup" object as argument. The fields of * this object are as follows: * id: See the description of "struct input_id". This field is * copied unchanged into the new device. * name: This is used unchanged as name for the new device. * ff_effects_max: This limits the maximum numbers of force-feedback effects. * See below for a description of FF with uinput. * * This ioctl can be called multiple times and will overwrite previous values. * If this ioctl fails with -EINVAL, it is recommended to use the old * "uinput_user_dev" method via write() as a fallback, in case you run on an * old kernel that does not support this ioctl. * * This ioctl may fail with -EINVAL if it is not supported or if you passed * incorrect values, -ENOMEM if the kernel runs out of memory or -EFAULT if the * passed uinput_setup object cannot be read/written. * If this call fails, partial data may have already been applied to the * internal device. */ #define UI_DEV_SETUP _IOW(UINPUT_IOCTL_BASE, 3, struct uinput_setup) struct uinput_abs_setup { __u16 code; /* axis code */ /* __u16 filler; */ struct input_absinfo absinfo; }; /** * UI_ABS_SETUP - Set absolute axis information for the device to setup * * This ioctl sets one absolute axis information for the input device to be * created. It supersedes the old "struct uinput_user_dev" method, which wrote * part of this data and the content