/* * 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 * */ #include #include #include #include #include #include #include #include #include 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; }