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/*
* Copyright 2002 Red Hat Inc., Durham, North Carolina.
*
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation on the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* This is a simple test program that reads from /dev/input/event*,
* decoding events into a human readable form.
*/
/*
* Authors:
* Rickard E. (Rik) Faith <faith@redhat.com>
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <fcntl.h>
#include <errno.h>
#include <time.h>
#include <linux/input.h>
struct input_event event;
int
main(int argc, char **argv)
{
char name[64]; /* RATS: Use ok, but could be better */
char buf[256] = { 0, }; /* RATS: Use ok */
unsigned char mask[EV_MAX / 8 + 1]; /* RATS: Use ok */
int version;
int fd = 0;
int rc;
int i, j;
char *tmp;
#define test_bit(bit) (mask[(bit)/8] & (1 << ((bit)%8)))
for (i = 0; i < 32; i++) {
snprintf(name, sizeof(name), "/dev/input/event%d", i);
if ((fd = open(name, O_RDONLY, 0)) >= 0) {
ioctl(fd, EVIOCGVERSION, &version);
ioctl(fd, EVIOCGNAME(sizeof(buf)), buf);
ioctl(fd, EVIOCGBIT(0, sizeof(mask)), mask);
printf("%s\n", name);
printf(" evdev version: %d.%d.%d\n",
version >> 16, (version >> 8) & 0xff, version & 0xff);
printf(" name: %s\n", buf);
printf(" features:");
for (j = 0; j < EV_MAX; j++) {
if (test_bit(j)) {
const char *type = "unknown";
switch (j) {
case EV_KEY:
type = "keys/buttons";
break;
case EV_REL:
type = "relative";
break;
case EV_ABS:
type = "absolute";
break;
case EV_MSC:
type = "reserved";
break;
case EV_LED:
type = "leds";
break;
case EV_SND:
type = "sound";
break;
case EV_REP:
type = "repeat";
break;
case EV_FF:
type = "feedback";
break;
}
printf(" %s", type);
}
}
printf("\n");
close(fd);
}
}
if (argc > 1) {
snprintf(name, sizeof(name), "/dev/input/event%d", atoi(argv[1]));
if ((fd = open(name, O_RDWR, 0)) >= 0) {
printf("%s: open, fd = %d\n", name, fd);
for (i = 0; i < LED_MAX; i++) {
event.time.tv_sec = time(0);
event.time.tv_usec = 0;
event.type = EV_LED;
event.code = i;
event.value = 0;
write(fd, &event, sizeof(event));
}
while ((rc = read(fd, &event, sizeof(event))) > 0) {
printf("%-24.24s.%06lu type 0x%04x; code 0x%04x;"
" value 0x%08x; ",
ctime(&event.time.tv_sec),
event.time.tv_usec, event.type, event.code, event.value);
switch (event.type) {
case EV_KEY:
if (event.code > BTN_MISC) {
printf("Button %d %s",
event.code & 0xff,
event.value ? "press" : "release");
}
else {
printf("Key %d (0x%x) %s",
event.code & 0xff,
event.code & 0xff,
event.value ? "press" : "release");
}
break;
case EV_REL:
switch (event.code) {
case REL_X:
tmp = "X";
break;
case REL_Y:
tmp = "Y";
break;
case REL_HWHEEL:
tmp = "HWHEEL";
break;
case REL_DIAL:
tmp = "DIAL";
break;
case REL_WHEEL:
tmp = "WHEEL";
break;
case REL_MISC:
tmp = "MISC";
break;
default:
tmp = "UNKNOWN";
break;
}
printf("Relative %s %d", tmp, event.value);
break;
case EV_ABS:
switch (event.code) {
case ABS_X:
tmp = "X";
break;
case ABS_Y:
tmp = "Y";
break;
case ABS_Z:
tmp = "Z";
break;
case ABS_RX:
tmp = "RX";
break;
case ABS_RY:
tmp = "RY";
break;
case ABS_RZ:
tmp = "RZ";
break;
case ABS_THROTTLE:
tmp = "THROTTLE";
break;
case ABS_RUDDER:
tmp = "RUDDER";
break;
case ABS_WHEEL:
tmp = "WHEEL";
break;
case ABS_GAS:
tmp = "GAS";
break;
case ABS_BRAKE:
tmp = "BRAKE";
break;
case ABS_HAT0X:
tmp = "HAT0X";
break;
case ABS_HAT0Y:
tmp = "HAT0Y";
break;
case ABS_HAT1X:
tmp = "HAT1X";
break;
case ABS_HAT1Y:
tmp = "HAT1Y";
break;
case ABS_HAT2X:
tmp = "HAT2X";
break;
case ABS_HAT2Y:
tmp = "HAT2Y";
break;
case ABS_HAT3X:
tmp = "HAT3X";
break;
case ABS_HAT3Y:
tmp = "HAT3Y";
break;
case ABS_PRESSURE:
tmp = "PRESSURE";
break;
case ABS_DISTANCE:
tmp = "DISTANCE";
break;
case ABS_TILT_X:
tmp = "TILT_X";
break;
case ABS_TILT_Y:
tmp = "TILT_Y";
break;
case ABS_MISC:
tmp = "MISC";
break;
default:
tmp = "UNKNOWN";
break;
}
printf("Absolute %s %d", tmp, event.value);
break;
case EV_MSC:
printf("Misc");
break;
case EV_LED:
printf("Led");
break;
case EV_SND:
printf("Snd");
break;
case EV_REP:
printf("Rep");
break;
case EV_FF:
printf("FF");
break;
break;
}
printf("\n");
}
printf("rc = %d, (%s)\n", rc, strerror(errno));
close(fd);
}
}
return 0;
}
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