1/* 2 * Copyright 2002 Red Hat Inc., Durham, North Carolina. 3 * 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining 7 * a copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation on the rights to use, copy, modify, merge, 10 * publish, distribute, sublicense, and/or sell copies of the Software, 11 * and to permit persons to whom the Software is furnished to do so, 12 * subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial 16 * portions of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 19 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 21 * NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS 22 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 23 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 24 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 25 * SOFTWARE. 26 * 27 * This is a simple test program that reads from /dev/input/event*, 28 * decoding events into a human readable form. 29 */ 30 31/* 32 * Authors: 33 * Rickard E. (Rik) Faith <faith@redhat.com> 34 * 35 */ 36 37#include <stdio.h> 38#include <stdlib.h> 39#include <unistd.h> 40#include <string.h> 41#include <sys/types.h> 42#include <fcntl.h> 43#include <errno.h> 44#include <time.h> 45#include <linux/input.h> 46 47struct input_event event; 48 49int main(int argc, char **argv) 50{ 51 char name[64]; /* RATS: Use ok, but could be better */ 52 char buf[256] = { 0, }; /* RATS: Use ok */ 53 unsigned char mask[EV_MAX/8 + 1]; /* RATS: Use ok */ 54 int version; 55 int fd = 0; 56 int rc; 57 int i, j; 58 char *tmp; 59 60#define test_bit(bit) (mask[(bit)/8] & (1 << ((bit)%8))) 61 62 for (i = 0; i < 32; i++) { 63 sprintf(name, "/dev/input/event%d", i); 64 if ((fd = open(name, O_RDONLY, 0)) >= 0) { 65 ioctl(fd, EVIOCGVERSION, &version); 66 ioctl(fd, EVIOCGNAME(sizeof(buf)), buf); 67 ioctl(fd, EVIOCGBIT(0, sizeof(mask)), mask); 68 printf("%s\n", name); 69 printf(" evdev version: %d.%d.%d\n", 70 version >> 16, (version >> 8) & 0xff, version & 0xff); 71 printf(" name: %s\n", buf); 72 printf(" features:"); 73 for (j = 0; j < EV_MAX; j++) { 74 if (test_bit(j)) { 75 const char *type = "unknown"; 76 switch(j) { 77 case EV_KEY: type = "keys/buttons"; break; 78 case EV_REL: type = "relative"; break; 79 case EV_ABS: type = "absolute"; break; 80 case EV_MSC: type = "reserved"; break; 81 case EV_LED: type = "leds"; break; 82 case EV_SND: type = "sound"; break; 83 case EV_REP: type = "repeat"; break; 84 case EV_FF: type = "feedback"; break; 85 } 86 printf(" %s", type); 87 } 88 } 89 printf("\n"); 90 close(fd); 91 } 92 } 93 94 if (argc > 1) { 95 sprintf(name, "/dev/input/event%d", atoi(argv[1])); 96 if ((fd = open(name, O_RDWR, 0)) >= 0) { 97 printf("%s: open, fd = %d\n", name, fd); 98 for (i = 0; i < LED_MAX; i++) { 99 event.time.tv_sec = time(0); 100 event.time.tv_usec = 0; 101 event.type = EV_LED; 102 event.code = i; 103 event.value = 0; 104 write(fd, &event, sizeof(event)); 105 } 106 107 while ((rc = read(fd, &event, sizeof(event))) > 0) { 108 printf("%-24.24s.%06lu type 0x%04x; code 0x%04x;" 109 " value 0x%08x; ", 110 ctime(&event.time.tv_sec), 111 event.time.tv_usec, 112 event.type, event.code, event.value); 113 switch (event.type) { 114 case EV_KEY: 115 if (event.code > BTN_MISC) { 116 printf("Button %d %s", 117 event.code & 0xff, 118 event.value ? "press" : "release"); 119 } else { 120 printf("Key %d (0x%x) %s", 121 event.code & 0xff, 122 event.code & 0xff, 123 event.value ? "press" : "release"); 124 } 125 break; 126 case EV_REL: 127 switch (event.code) { 128 case REL_X: tmp = "X"; break; 129 case REL_Y: tmp = "Y"; break; 130 case REL_HWHEEL: tmp = "HWHEEL"; break; 131 case REL_DIAL: tmp = "DIAL"; break; 132 case REL_WHEEL: tmp = "WHEEL"; break; 133 case REL_MISC: tmp = "MISC"; break; 134 default: tmp = "UNKNOWN"; break; 135 } 136 printf("Relative %s %d", tmp, event.value); 137 break; 138 case EV_ABS: 139 switch (event.code) { 140 case ABS_X: tmp = "X"; break; 141 case ABS_Y: tmp = "Y"; break; 142 case ABS_Z: tmp = "Z"; break; 143 case ABS_RX: tmp = "RX"; break; 144 case ABS_RY: tmp = "RY"; break; 145 case ABS_RZ: tmp = "RZ"; break; 146 case ABS_THROTTLE: tmp = "THROTTLE"; break; 147 case ABS_RUDDER: tmp = "RUDDER"; break; 148 case ABS_WHEEL: tmp = "WHEEL"; break; 149 case ABS_GAS: tmp = "GAS"; break; 150 case ABS_BRAKE: tmp = "BRAKE"; break; 151 case ABS_HAT0X: tmp = "HAT0X"; break; 152 case ABS_HAT0Y: tmp = "HAT0Y"; break; 153 case ABS_HAT1X: tmp = "HAT1X"; break; 154 case ABS_HAT1Y: tmp = "HAT1Y"; break; 155 case ABS_HAT2X: tmp = "HAT2X"; break; 156 case ABS_HAT2Y: tmp = "HAT2Y"; break; 157 case ABS_HAT3X: tmp = "HAT3X"; break; 158 case ABS_HAT3Y: tmp = "HAT3Y"; break; 159 case ABS_PRESSURE: tmp = "PRESSURE"; break; 160 case ABS_DISTANCE: tmp = "DISTANCE"; break; 161 case ABS_TILT_X: tmp = "TILT_X"; break; 162 case ABS_TILT_Y: tmp = "TILT_Y"; break; 163 case ABS_MISC: tmp = "MISC"; break; 164 default: tmp = "UNKNOWN"; break; 165 } 166 printf("Absolute %s %d", tmp, event.value); 167 break; 168 case EV_MSC: printf("Misc"); break; 169 case EV_LED: printf("Led"); break; 170 case EV_SND: printf("Snd"); break; 171 case EV_REP: printf("Rep"); break; 172 case EV_FF: printf("FF"); break; 173 break; 174 } 175 printf("\n"); 176 } 177 printf("rc = %d, (%s)\n", rc, strerror(errno)); 178 close(fd); 179 } 180 } 181 return 0; 182} 183