#define _POSIX_C_SOURCE 200809L #include #include #include #include #include #include #include #include #include #include #include "sway/config.h" #include "sway/input/input-manager.h" #include "sway/input/seat.h" #include "sway/server.h" #include "stringop.h" #include "list.h" #include "log.h" #define DEFAULT_SEAT "seat0" struct input_config *current_input_config = NULL; struct seat_config *current_seat_config = NULL; struct sway_seat *input_manager_current_seat(void) { struct sway_seat *seat = config->handler_context.seat; if (!seat) { seat = input_manager_get_default_seat(); } return seat; } struct sway_seat *input_manager_get_default_seat(void) { return input_manager_get_seat(DEFAULT_SEAT, true); } struct sway_seat *input_manager_get_seat(const char *seat_name, bool create) { struct sway_seat *seat = NULL; wl_list_for_each(seat, &server.input->seats, link) { if (strcmp(seat->wlr_seat->name, seat_name) == 0) { return seat; } } return create ? seat_create(seat_name) : NULL; } char *input_device_get_identifier(struct wlr_input_device *device) { int vendor = device->vendor; int product = device->product; char *name = strdup(device->name); strip_whitespace(name); char *p = name; for (; *p; ++p) { if (*p == ' ') { *p = '_'; } } const char *fmt = "%d:%d:%s"; int len = snprintf(NULL, 0, fmt, vendor, product, name) + 1; char *identifier = malloc(len); if (!identifier) { sway_log(SWAY_ERROR, "Unable to allocate unique input device name"); return NULL; } snprintf(identifier, len, fmt, vendor, product, name); free(name); return identifier; } static struct sway_input_device *input_sway_device_from_wlr( struct wlr_input_device *device) { struct sway_input_device *input_device = NULL; wl_list_for_each(input_device, &server.input->devices, link) { if (input_device->wlr_device == device) { return input_device; } } return NULL; } static bool input_has_seat_fallback_configuration(void) { struct sway_seat *seat = NULL; wl_list_for_each(seat, &server.input->seats, link) { struct seat_config *seat_config = seat_get_config(seat); if (seat_config && strcmp(seat_config->name, "*") != 0 && seat_config->fallback != -1) { return true; } } return false; } void input_manager_verify_fallback_seat(void) { struct sway_seat *seat = NULL; if (!input_has_seat_fallback_configuration()) { sway_log(SWAY_DEBUG, "no fallback seat config - creating default"); seat = input_manager_get_default_seat(); struct seat_config *sc = new_seat_config(seat->wlr_seat->name); sc->fallback = true; sc = store_seat_config(sc); input_manager_apply_seat_config(sc); } } static void log_libinput_config_status(enum libinput_config_status status) { if (status != LIBINPUT_CONFIG_STATUS_SUCCESS) { sway_log(SWAY_ERROR, "Failed to apply libinput config: %s", libinput_config_status_to_str(status)); } } static void input_manager_libinput_config_keyboard( struct sway_input_device *input_device) { struct wlr_input_device *wlr_device = input_device->wlr_device; struct input_config *ic = input_device_get_config(input_device); struct libinput_device *libinput_device; if (!ic || !wlr_input_device_is_libinput(wlr_device)) { return; } libinput_device = wlr_libinput_get_device_handle(wlr_device); sway_log(SWAY_DEBUG, "input_manager_libinput_config_keyboard(%s)", ic->identifier); if (ic->send_events != INT_MIN) { sway_log(SWAY_DEBUG, "libinput_config_keyboard(%s) send_events_set_mode(%d)", ic->identifier, ic->send_events); log_libinput_config_status(libinput_device_config_send_events_set_mode( libinput_device, ic->send_events)); } } static void input_manager_libinput_reset_keyboard( struct sway_input_device *input_device) { struct wlr_input_device *wlr_device = input_device->wlr_device; struct libinput_device *libinput_device; if (!wlr_input_device_is_libinput(wlr_device)) { return; } libinput_device = wlr_libinput_get_device_handle(wlr_device); uint32_t send_events = libinput_device_config_send_events_get_default_mode(libinput_device); sway_log(SWAY_DEBUG, "libinput_reset_keyboard(%s) send_events_set_mode(%d)", input_device->identifier, send_events); log_libinput_config_status(libinput_device_config_send_events_set_mode( libinput_device, send_events)); } static void input_manager_libinput_config_touch( struct sway_input_device *input_device) { struct wlr_input_device *wlr_device = input_device->wlr_device; struct input_config *ic = input_device_get_config(input_device); struct libinput_device *libinput_device; if (!ic || !wlr_input_device_is_libinput(wlr_device)) { return; } libinput_device = wlr_libinput_get_device_handle(wlr_device); sway_log(SWAY_DEBUG, "input_manager_libinput_config_touch(%s)", ic->identifier); if (ic->send_events != INT_MIN) { sway_log(SWAY_DEBUG, "libinput_config_touch(%s) send_events_set_mode(%d)", ic->identifier, ic->send_events); log_libinput_config_status(libinput_device_config_send_events_set_mode( libinput_device, ic->send_events)); } } static void input_manager_libinput_reset_touch( struct sway_input_device *input_device) { struct wlr_input_device *wlr_device = input_device->wlr_device; struct libinput_device *libinput_device; if (!wlr_input_device_is_libinput(wlr_device)) { return; } libinput_device = wlr_libinput_get_device_handle(wlr_device); uint32_t send_events = libinput_device_config_send_events_get_default_mode(libinput_device); sway_log(SWAY_DEBUG, "libinput_reset_touch(%s) send_events_set_mode(%d)", input_device->identifier, send_events); log_libinput_config_status(libinput_device_config_send_events_set_mode( libinput_device, send_events)); } static void input_manager_libinput_config_pointer( struct sway_input_device *input_device) { struct wlr_input_device *wlr_device = input_device->wlr_device; struct input_config *ic = input_device_get_config(input_device); struct libinput_device *libinput_device; if (!ic || !wlr_input_device_is_libinput(wlr_device)) { return; } libinput_device = wlr_libinput_get_device_handle(wlr_device); sway_log(SWAY_DEBUG, "input_manager_libinput_config_pointer(%s)", ic->identifier); if (ic->accel_profile != INT_MIN) { sway_log(SWAY_DEBUG, "libinput_config_pointer(%s) accel_set_profile(%d)", ic->identifier, ic->accel_profile); log_libinput_config_status(libinput_device_config_accel_set_profile( libinput_device, ic->accel_profile)); } if (ic->click_method != INT_MIN) { sway_log(SWAY_DEBUG, "libinput_config_pointer(%s) click_set_method(%d)", ic->identifier, ic->click_method); log_libinput_config_status(libinput_device_config_click_set_method( libinput_device, ic->click_method)); } if (ic->drag != INT_MIN) { sway_log(SWAY_DEBUG, "libinput_config_pointer(%s) tap_set_drag_enabled(%d)", ic->identifier, ic->drag); log_libinput_config_status(libinput_device_config_tap_set_drag_enabled( libinput_device, ic->drag)); } if (ic->drag_lock != INT_MIN) { sway_log(SWAY_DEBUG, "libinput_config_pointer(%s) tap_set_drag_lock_enabled(%d)", ic->identifier, ic->drag_lock); log_libinput_config_status( libinput_device_config_tap_set_drag_lock_enabled( libinput_device, ic->drag_lock)); } if (ic->dwt != INT_MIN) { sway_log(SWAY_DEBUG, "libinput_config_pointer(%s) dwt_set_enabled(%d)", ic->identifier, ic->dwt); log_libinput_config_status(libinput_device_config_dwt_set_enabled( libinput_device, ic->dwt)); } if (ic->left_handed != INT_MIN) { sway_log(SWAY_DEBUG, "libinput_config_pointer(%s) left_handed_set_enabled(%d)", ic->identifier, ic->left_handed); log_libinput_config_status(libinput_device_config_left_handed_set( libinput_device, ic->left_handed)); } if (ic->middle_emulation != INT_MIN) { sway_log(SWAY_DEBUG, "libinput_config_pointer(%s) middle_emulation_set_enabled(%d)", ic->identifier, ic->middle_emulation); log_libinput_config_status( libinput_device_config_middle_emulation_set_enabled( libinput_device, ic->middle_emulation)); } if (ic->natural_scroll != INT_MIN) { sway_log(SWAY_DEBUG, "libinput_config_pointer(%s) natural_scroll_set_enabled(%d)", ic->identifier, ic->natural_scroll); log_libinput_config_status( libinput_device_config_scroll_set_natural_scroll_enabled( libinput_device, ic->natural_scroll)); } if (ic->pointer_accel != FLT_MIN) { sway_log(SWAY_DEBUG, "libinput_config_pointer(%s) accel_set_speed(%f)", ic->identifier, ic->pointer_accel); log_libinput_config_status(libinput_device_config_accel_set_speed( libinput_device, ic->pointer_accel)); } if (ic->scroll_button != INT_MIN) { sway_log(SWAY_DEBUG, "libinput_config_pointer(%s) scroll_set_button(%d)", ic->identifier, ic->scroll_button); log_libinput_config_status(libinput_device_config_scroll_set_button( libinput_device, ic->scroll_button)); } if (ic->scroll_method != INT_MIN) { sway_log(SWAY_DEBUG, "libinput_config_pointer(%s) scroll_set_method(%d)", ic->identifier, ic->scroll_method); log_libinput_config_status(libinput_device_config_scroll_set_method( libinput_device, ic->scroll_method)); } if (ic->send_events != INT_MIN) { sway_log(SWAY_DEBUG, "libinput_config_pointer(%s) send_events_set_mode(%d)", ic->identifier, ic->send_events); log_libinput_config_status(libinput_device_config_send_events_set_mode( libinput_device, ic->send_events)); } if (ic->tap != INT_MIN) { sway_log(SWAY_DEBUG, "libinput_config_pointer(%s) tap_set_enabled(%d)", ic->identifier, ic->tap); log_libinput_config_status(libinput_device_config_tap_set_enabled( libinput_device, ic->tap)); } if (ic->tap_button_map != INT_MIN) { sway_log(SWAY_DEBUG, "libinput_config_pointer(%s) tap_set_button_map(%d)", ic->identifier, ic->tap_button_map); log_libinput_config_status(libinput_device_config_tap_set_button_map( libinput_device, ic->tap_button_map)); } } static void input_manager_libinput_reset_pointer( struct sway_input_device *input_device) { struct wlr_input_device *wlr_device = input_device->wlr_device; if (!wlr_input_device_is_libinput(wlr_device)) { return; } struct libinput_device *libinput_device = wlr_libinput_get_device_handle(wlr_device); enum libinput_config_accel_profile accel_profile = libinput_device_config_accel_get_default_profile(libinput_device); sway_log(SWAY_DEBUG, "libinput_reset_pointer(%s) accel_set_profile(%d)", input_device->identifier, accel_profile); log_libinput_config_status(libinput_device_config_accel_set_profile( libinput_device, accel_profile)); enum libinput_config_click_method click_method = libinput_device_config_click_get_default_method(libinput_device); sway_log(SWAY_DEBUG, "libinput_reset_pointer(%s) click_set_method(%d)", input_device->identifier, click_method); log_libinput_config_status(libinput_device_config_click_set_method( libinput_device, click_method)); enum libinput_config_drag_state drag = libinput_device_config_tap_get_default_drag_enabled(libinput_device); sway_log(SWAY_DEBUG, "libinput_reset_pointer(%s) tap_set_drag_enabled(%d)", input_device->identifier, drag); log_libinput_config_status(libinput_device_config_tap_set_drag_enabled( libinput_device, drag)); enum libinput_config_drag_lock_state drag_lock = libinput_device_config_tap_get_default_drag_lock_enabled( libinput_device); sway_log(SWAY_DEBUG, "libinput_reset_pointer(%s) tap_set_drag_lock_enabled(%d)", input_device->identifier, drag_lock); log_libinput_config_status( libinput_device_config_tap_set_drag_lock_enabled( libinput_device, drag_lock)); enum libinput_config_dwt_state dwt = libinput_device_config_dwt_get_default_enabled(libinput_device); sway_log(SWAY_DEBUG, "libinput_reset_pointer(%s) dwt_set_enabled(%d)", input_device->identifier, dwt); log_libinput_config_status(libinput_device_config_dwt_set_enabled( libinput_device, dwt)); int left_handed = libinput_device_config_left_handed_get_default(libinput_device); sway_log(SWAY_DEBUG, "libinput_reset_pointer(%s) left_handed_set_enabled(%d)", input_device->identifier, left_handed); log_libinput_config_status(libinput_device_config_left_handed_set( libinput_device, left_handed)); enum libinput_config_middle_emulation_state middle_emulation = libinput_device_config_middle_emulation_get_default_enabled( libinput_device); sway_log(SWAY_DEBUG, "libinput_reset_pointer(%s) middle_emulation_set_enabled(%d)", input_device->identifier, middle_emulation); log_libinput_config_status( libinput_device_config_middle_emulation_set_enabled( libinput_device, middle_emulation)); int natural_scroll = libinput_device_config_scroll_get_default_natural_scroll_enabled( libinput_device); sway_log(SWAY_DEBUG, "libinput_reset_pointer(%s) natural_scroll_set_enabled(%d)", input_device->identifier, natural_scroll); log_libinput_config_status( libinput_device_config_scroll_set_natural_scroll_enabled( libinput_device, natural_scroll)); double pointer_accel = libinput_device_config_accel_get_default_speed(libinput_device); sway_log(SWAY_DEBUG, "libinput_reset_pointer(%s) accel_set_speed(%f)", input_device->identifier, pointer_accel); log_libinput_config_status(libinput_device_config_accel_set_speed( libinput_device, pointer_accel)); uint32_t scroll_button = libinput_device_config_scroll_get_default_button(libinput_device); sway_log(SWAY_DEBUG, "libinput_reset_pointer(%s) scroll_set_button(%d)", input_device->identifier, scroll_button); log_libinput_config_status(libinput_device_config_scroll_set_button( libinput_device, scroll_button)); enum libinput_config_scroll_method scroll_method = libinput_device_config_scroll_get_default_method(libinput_device); sway_log(SWAY_DEBUG, "libinput_reset_pointer(%s) scroll_set_method(%d)", input_device->identifier, scroll_method); log_libinput_config_status(libinput_device_config_scroll_set_method( libinput_device, scroll_method)); uint32_t send_events = libinput_device_config_send_events_get_default_mode(libinput_device); sway_log(SWAY_DEBUG, "libinput_reset_pointer(%s) send_events_set_mode(%d)", input_device->identifier, send_events); log_libinput_config_status(libinput_device_config_send_events_set_mode( libinput_device, send_events)); enum libinput_config_tap_state tap = libinput_device_config_tap_get_default_enabled(libinput_device); sway_log(SWAY_DEBUG, "libinput_reset_pointer(%s) tap_set_enabled(%d)", input_device->identifier, tap); log_libinput_config_status(libinput_device_config_tap_set_enabled( libinput_device, tap)); enum libinput_config_tap_button_map tap_button_map = libinput_device_config_tap_get_button_map(libinput_device); sway_log(SWAY_DEBUG, "libinput_reset_pointer(%s) tap_set_button_map(%d)", input_device->identifier, tap_button_map); log_libinput_config_status(libinput_device_config_tap_set_button_map( libinput_device, tap_button_map)); } static void handle_device_destroy(struct wl_listener *listener, void *data) { struct wlr_input_device *device = data; struct sway_input_device *input_device = input_sway_device_from_wlr(device); if (!sway_assert(input_device, "could not find sway device")) { return; } sway_log(SWAY_DEBUG, "removing device: '%s'", input_device->identifier); struct sway_seat *seat = NULL; wl_list_for_each(seat, &server.input->seats, link) { seat_remove_device(seat, input_device); } wl_list_remove(&input_device->link); wl_list_remove(&input_device->device_destroy.link); free(input_device->identifier); free(input_device); } static void handle_new_input(struct wl_listener *listener, void *data) { struct sway_input_manager *input = wl_container_of(listener, input, new_input); struct wlr_input_device *device = data; struct sway_input_device *input_device = calloc(1, sizeof(struct sway_input_device)); if (!sway_assert(input_device, "could not allocate input device")) { return; } device->data = input_device; input_device->wlr_device = device; input_device->identifier = input_device_get_identifier(device); wl_list_insert(&input->devices, &input_device->link); sway_log(SWAY_DEBUG, "adding device: '%s'", input_device->identifier); if (input_device->wlr_device->type == WLR_INPUT_DEVICE_POINTER || input_device->wlr_device->type == WLR_INPUT_DEVICE_TABLET_TOOL) { input_manager_libinput_config_pointer(input_device); } else if (input_device->wlr_device->type == WLR_INPUT_DEVICE_KEYBOARD) { input_manager_libinput_config_keyboard(input_device); } else if (input_device->wlr_device->type == WLR_INPUT_DEVICE_TOUCH) { input_manager_libinput_config_touch(input_device); } wl_signal_add(&device->events.destroy, &input_device->device_destroy); input_device->device_destroy.notify = handle_device_destroy; input_manager_verify_fallback_seat(); bool added = false; struct sway_seat *seat = NULL; wl_list_for_each(seat, &input->seats, link) { struct seat_config *seat_config = seat_get_config(seat); bool has_attachment = seat_config && (seat_config_get_attachment(seat_config, input_device->identifier) || seat_config_get_attachment(seat_config, "*")); if (has_attachment) { seat_add_device(seat, input_device); added = true; } } if (!added) { wl_list_for_each(seat, &input->seats, link) { struct seat_config *seat_config = seat_get_config(seat); if (seat_config && seat_config->fallback == 1) { seat_add_device(seat, input_device); added = true; } } } if (!added) { sway_log(SWAY_DEBUG, "device '%s' is not configured on any seats", input_device->identifier); } } static void handle_inhibit_activate(struct wl_listener *listener, void *data) { struct sway_input_manager *input_manager = wl_container_of( listener, input_manager, inhibit_activate); struct sway_seat *seat; wl_list_for_each(seat, &input_manager->seats, link) { seat_set_exclusive_client(seat, input_manager->inhibit->active_client); } } static void handle_inhibit_deactivate(struct wl_listener *listener, void *data) { struct sway_input_manager *input_manager = wl_container_of( listener, input_manager, inhibit_deactivate); struct sway_seat *seat; wl_list_for_each(seat, &input_manager->seats, link) { seat_set_exclusive_client(seat, NULL); struct sway_node *previous = seat_get_focus(seat); if (previous) { // Hack to get seat to re-focus the return value of get_focus seat_set_focus(seat, NULL); seat_set_focus(seat, previous); } } } void handle_virtual_keyboard(struct wl_listener *listener, void *data) { struct sway_input_manager *input_manager = wl_container_of(listener, input_manager, virtual_keyboard_new); struct wlr_virtual_keyboard_v1 *keyboard = data; struct wlr_input_device *device = &keyboard->input_device; struct sway_seat *seat = input_manager_get_default_seat(); // TODO: The user might want this on a different seat struct sway_input_device *input_device = calloc(1, sizeof(struct sway_input_device)); if (!sway_assert(input_device, "could not allocate input device")) { return; } device->data = input_device; input_device->wlr_device = device; input_device->identifier = input_device_get_identifier(device); wl_list_insert(&input_manager->devices, &input_device->link); sway_log(SWAY_DEBUG, "adding virtual keyboard: '%s'", input_device->identifier); wl_signal_add(&device->events.destroy, &input_device->device_destroy); input_device->device_destroy.notify = handle_device_destroy; seat_add_device(seat, input_device); } struct sway_input_manager *input_manager_create(struct sway_server *server) { struct sway_input_manager *input = calloc(1, sizeof(struct sway_input_manager)); if (!input) { return NULL; } wl_list_init(&input->devices); wl_list_init(&input->seats); input->new_input.notify = handle_new_input; wl_signal_add(&server->backend->events.new_input, &input->new_input); input->virtual_keyboard = wlr_virtual_keyboard_manager_v1_create( server->wl_display); wl_signal_add(&input->virtual_keyboard->events.new_virtual_keyboard, &input->virtual_keyboard_new); input->virtual_keyboard_new.notify = handle_virtual_keyboard; input->inhibit = wlr_input_inhibit_manager_create(server->wl_display); input->inhibit_activate.notify = handle_inhibit_activate; wl_signal_add(&input->inhibit->events.activate, &input->inhibit_activate); input->inhibit_deactivate.notify = handle_inhibit_deactivate; wl_signal_add(&input->inhibit->events.deactivate, &input->inhibit_deactivate); return input; } bool input_manager_has_focus(struct sway_node *node) { struct sway_seat *seat = NULL; wl_list_for_each(seat, &server.input->seats, link) { if (seat_get_focus(seat) == node) { return true; } } return false; } void input_manager_set_focus(struct sway_node *node) { struct sway_seat *seat; wl_list_for_each(seat, &server.input->seats, link) { seat_set_focus(seat, node); seat_consider_warp_to_focus(seat); } } void input_manager_apply_input_config(struct input_config *input_config) { struct sway_input_device *input_device = NULL; bool wildcard = strcmp(input_config->identifier, "*") == 0; wl_list_for_each(input_device, &server.input->devices, link) { if (strcmp(input_device->identifier, input_config->identifier) == 0 || wildcard) { if (input_device->wlr_device->type == WLR_INPUT_DEVICE_POINTER || input_device->wlr_device->type == WLR_INPUT_DEVICE_TABLET_TOOL) { input_manager_libinput_config_pointer(input_device); } else if (input_device->wlr_device->type == WLR_INPUT_DEVICE_KEYBOARD) { input_manager_libinput_config_keyboard(input_device); } else if (input_device->wlr_device->type == WLR_INPUT_DEVICE_TOUCH) { input_manager_libinput_config_touch(input_device); } struct sway_seat *seat = NULL; wl_list_for_each(seat, &server.input->seats, link) { seat_configure_device(seat, input_device); } } } } void input_manager_reset_input(struct sway_input_device *input_device) { if (input_device->wlr_device->type == WLR_INPUT_DEVICE_POINTER || input_device->wlr_device->type == WLR_INPUT_DEVICE_TABLET_TOOL) { input_manager_libinput_reset_pointer(input_device); } else if (input_device->wlr_device->type == WLR_INPUT_DEVICE_KEYBOARD) { input_manager_libinput_reset_keyboard(input_device); } else if (input_device->wlr_device->type == WLR_INPUT_DEVICE_TOUCH) { input_manager_libinput_reset_touch(input_device); } struct sway_seat *seat = NULL; wl_list_for_each(seat, &server.input->seats, link) { seat_reset_device(seat, input_device); } } void input_manager_reset_all_inputs() { struct sway_input_device *input_device = NULL; wl_list_for_each(input_device, &server.input->devices, link) { input_manager_reset_input(input_device); } } void input_manager_apply_seat_config(struct seat_config *seat_config) { sway_log(SWAY_DEBUG, "applying seat config for seat %s", seat_config->name); if (strcmp(seat_config->name, "*") == 0) { struct sway_seat *seat = NULL; wl_list_for_each(seat, &server.input->seats, link) { // Only apply the wildcard config directly if there is no seat // specific config struct seat_config *sc = seat_get_config(seat); if (!sc) { sc = seat_config; } seat_apply_config(seat, sc); } } else { struct sway_seat *seat = input_manager_get_seat(seat_config->name, true); if (!seat) { return; } seat_apply_config(seat, seat_config); } // for every device, try to add it to a seat and if no seat has it // attached, add it to the fallback seats. struct sway_input_device *input_device = NULL; wl_list_for_each(input_device, &server.input->devices, link) { list_t *seat_list = create_list(); struct sway_seat *seat = NULL; wl_list_for_each(seat, &server.input->seats, link) { struct seat_config *seat_config = seat_get_config(seat); if (!seat_config) { continue; } if (seat_config_get_attachment(seat_config, "*") || seat_config_get_attachment(seat_config, input_device->identifier)) { list_add(seat_list, seat); } } if (seat_list->length) { wl_list_for_each(seat, &server.input->seats, link) { bool attached = false; for (int i = 0; i < seat_list->length; ++i) { if (seat == seat_list->items[i]) { attached = true; break; } } if (attached) { seat_add_device(seat, input_device); } else { seat_remove_device(seat, input_device); } } } else { wl_list_for_each(seat, &server.input->seats, link) { struct seat_config *seat_config = seat_get_config(seat); if (seat_config && seat_config->fallback == 1) { seat_add_device(seat, input_device); } else { seat_remove_device(seat, input_device); } } } list_free(seat_list); } } void input_manager_configure_xcursor(void) { struct sway_seat *seat = NULL; wl_list_for_each(seat, &server.input->seats, link) { seat_configure_xcursor(seat); } } struct input_config *input_device_get_config(struct sway_input_device *device) { struct input_config *wildcard_config = NULL; struct input_config *input_config = NULL; for (int i = 0; i < config->input_configs->length; ++i) { input_config = config->input_configs->items[i]; if (strcmp(input_config->identifier, device->identifier) == 0) { return input_config; } else if (strcmp(input_config->identifier, "*") == 0) { wildcard_config = input_config; } } return wildcard_config; }