int main (int argc, char **argv) { int rc; int fd; const char *path; struct libevdev *dev; struct measurements measurements = {0}; if (argc < 2) return usage(); path = argv[1]; if (path[0] == '-') return usage(); fd = open(path, O_RDONLY|O_NONBLOCK); if (fd < 0) { fprintf(stderr, "Error opening the device: %s\n", strerror(errno)); return 1; } rc = libevdev_new_from_fd(fd, &dev); if (rc != 0) { fprintf(stderr, "Error fetching the device info: %s\n", strerror(-rc)); return 1; } if (libevdev_grab(dev, LIBEVDEV_GRAB) != 0) { fprintf(stderr, "Error: cannot grab the device, something else is grabbing it.\n"); fprintf(stderr, "Use 'fuser -v %s' to find processes with an open fd\n", path); return 1; } libevdev_grab(dev, LIBEVDEV_UNGRAB); printf("Mouse %s on %s\n", libevdev_get_name(dev), path); printf("Move the device 250mm/10in or more along the x-axis.\n"); printf("Pause 3 seconds before movement to reset, Ctrl+C to exit.\n"); setbuf(stdout, NULL); rc = mainloop(dev, &measurements); printf("\n"); print_summary(&measurements); printf("\n"); printf("Entry for hwdb match (replace XXX with the resolution in DPI):\n" "mouse:%s:v%04xp%04x:name:%s:\n" " MOUSE_DPI=XXX@%d\n", bustype(libevdev_get_id_bustype(dev)), libevdev_get_id_vendor(dev), libevdev_get_id_product(dev), libevdev_get_name(dev), (int)measurements.max_frequency); libevdev_free(dev); close(fd); return rc; }
void joystick_linux::open_joystick(const char *p_path) { int joy_num = get_free_joy_slot(); int fd = open(p_path, O_RDONLY | O_NONBLOCK); if (fd != -1 && joy_num != -1) { int rc = libevdev_new_from_fd(fd, &joysticks[joy_num].dev); if (rc < 0) { fprintf(stderr, "Failed to init libevdev (%s)\n", strerror(-rc)); return; } libevdev *dev = joysticks[joy_num].dev; //check if the device supports basic gamepad events, prevents certain keyboards from //being detected as joysticks if (libevdev_has_event_type(dev, EV_ABS) && libevdev_has_event_type(dev, EV_KEY) && (libevdev_has_event_code(dev, EV_KEY, BTN_A) || libevdev_has_event_code(dev, EV_KEY, BTN_THUMBL) || libevdev_has_event_code(dev, EV_KEY, BTN_TOP))) { char uid[128]; String name = libevdev_get_name(dev); uint16_t bus = __bswap_16(libevdev_get_id_bustype(dev)); uint16_t vendor = __bswap_16(libevdev_get_id_vendor(dev)); uint16_t product = __bswap_16(libevdev_get_id_product(dev)); uint16_t version = __bswap_16(libevdev_get_id_version(dev)); joysticks[joy_num].reset(); Joystick &joy = joysticks[joy_num]; joy.fd = fd; joy.devpath = String(p_path); setup_joystick_properties(joy_num); sprintf(uid, "%04x%04x", bus, 0); if (vendor && product && version) { sprintf(uid + String(uid).length(), "%04x%04x%04x%04x%04x%04x", vendor,0,product,0,version,0); input->joy_connection_changed(joy_num, true, name, uid); } else { String uidname = uid; int uidlen = MIN(name.length(), 11); for (int i=0; i<uidlen; i++) { uidname = uidname + _hex_str(name[i]); } uidname += "00"; input->joy_connection_changed(joy_num, true, name, uidname); } } else { //device is not a gamepad, clean up libevdev_free(dev); close(fd); } } }
END_TEST START_TEST(device_ids) { struct litest_device *dev = litest_current_device(); const char *name; unsigned int pid, vid; name = libevdev_get_name(dev->evdev); pid = libevdev_get_id_product(dev->evdev); vid = libevdev_get_id_vendor(dev->evdev); ck_assert_str_eq(name, libinput_device_get_name(dev->libinput_device)); ck_assert_int_eq(pid, libinput_device_get_id_product(dev->libinput_device)); ck_assert_int_eq(vid, libinput_device_get_id_vendor(dev->libinput_device)); }
int main(int argc, char const *argv[]) { if (argc < 5) { printf("Usage: evmpd HOSTNAME PORT DEVICE HALT_COMMAND\n"); return EXIT_FAILURE; } struct mpd_connection *client = connect(argv[1], strtol(argv[2], NULL, 10)); struct libevdev *dev = NULL; int fd; int rc = 1; fd = open(argv[3], O_RDONLY | O_NONBLOCK); rc = libevdev_new_from_fd(fd, &dev); if (rc < 0) { fprintf(stderr, "Failed to init libevdev (%d)\n", strerror(-rc)); return EXIT_FAILURE; } printf("Input device name: \"%s\"\n", libevdev_get_name(dev)); printf("Input device ID: bus %#x vendor %#x product %#x\n", libevdev_get_id_bustype(dev), libevdev_get_id_vendor(dev), libevdev_get_id_product(dev)); do { struct input_event ev; rc = libevdev_next_event(dev, LIBEVDEV_READ_FLAG_NORMAL, &ev); if (rc == 0 && ev.value == 0) { if (libevdev_event_is_code(&ev, EV_KEY, KEY_F4)) { system(argv[4]); printf("shutdown\n"); } else if (libevdev_event_is_code(&ev, EV_KEY, KEY_PLAYPAUSE)) { struct mpd_status *status = mpd_run_status(client); enum mpd_state state = mpd_status_get_state(status); if (state != MPD_STATE_PLAY && state != MPD_STATE_PAUSE) { mpd_run_play(client); printf("play\n"); } else { mpd_run_toggle_pause(client); printf("toggle-pause\n"); } } else if (libevdev_event_is_code(&ev, EV_KEY, KEY_STOPCD)) { mpd_run_stop(client); printf("stop\n"); } else if (libevdev_event_is_code(&ev, EV_KEY, KEY_PREVIOUSSONG)) { mpd_run_previous(client); printf("previous\n"); } else if (libevdev_event_is_code(&ev, EV_KEY, KEY_NEXTSONG)) { mpd_run_next(client); printf("next\n"); } else if (libevdev_event_is_code(&ev, EV_KEY, KEY_VOLUMEUP)) { struct mpd_status *status = mpd_run_status(client); int volume = mpd_status_get_volume(status); volume += 5; if (volume > 100) { volume = 100; } mpd_run_set_volume(client, volume); printf("set-volume %d\n", volume); } else if (libevdev_event_is_code(&ev, EV_KEY, KEY_VOLUMEDOWN)) { struct mpd_status *status = mpd_run_status(client); int volume = mpd_status_get_volume(status); volume -= 5; if (volume < 0) { volume = 0; } mpd_run_set_volume(client, volume); printf("set-volume %d\n", volume); } else { printf("Event: %s %s %d\n", libevdev_event_type_get_name(ev.type), libevdev_event_code_get_name(ev.type, ev.code), ev.value); } } } while (rc == LIBEVDEV_READ_STATUS_SUCCESS || rc == LIBEVDEV_READ_STATUS_SYNC || rc == -EAGAIN); printf("rc: %d\n", rc); if (client != NULL) { mpd_connection_free(client); } return EXIT_SUCCESS; }