diff --git a/backend/wayland/registry.c b/backend/wayland/registry.c
index a0cfb91f..b3955bc1 100644
--- a/backend/wayland/registry.c
+++ b/backend/wayland/registry.c
@@ -21,7 +21,9 @@ static void registry_wl_seat(struct wlr_wl_backend *backend,
 		goto error;
 	}
 	seat->wl_seat = wl_seat;
+	wl_seat_set_user_data(wl_seat, backend);
 	wl_seat_add_listener(wl_seat, &seat_listener, seat);
+	return;
 error:
 	//wlr_wl_seat_free(seat); TODO
 	return;
@@ -32,13 +34,21 @@ static void registry_wl_output(struct wlr_wl_backend *backend,
 	struct wlr_wl_output *output;
 	if (!(output = calloc(sizeof(struct wlr_wl_output), 1))) {
 		wlr_log(L_ERROR, "Failed to allocate wlr_wl_output");
-		return;
+		goto error;
+	}
+	if (!(output->modes = list_create())) {
+		wlr_log(L_ERROR, "Failed to allocate wlr_wl_output");
+		goto error;
 	}
 	output->wl_output = wl_output;
 	output->scale = 1;
 	list_add(backend->outputs, output);
 	wl_output_set_user_data(wl_output, backend);
 	wl_output_add_listener(wl_output, &output_listener, output);
+	return;
+error:
+	//wlr_wl_output_free(output); TODO
+	return;
 }
 
 static void registry_global(void *data, struct wl_registry *registry,
@@ -77,8 +87,7 @@ static const struct wl_registry_listener registry_listener = {
 };
 
 void wlr_wlb_registry_poll(struct wlr_wl_backend *backend) {
-	wl_registry_add_listener(backend->registry,
-			&registry_listener, backend->registry);
+	wl_registry_add_listener(backend->registry, &registry_listener, backend);
 	wl_display_dispatch(backend->remote_display);
 	wl_display_roundtrip(backend->remote_display);
 }
diff --git a/backend/wayland/wl_seat.c b/backend/wayland/wl_seat.c
index 489c1e39..5269d5fe 100644
--- a/backend/wayland/wl_seat.c
+++ b/backend/wayland/wl_seat.c
@@ -1,15 +1,47 @@
+#include <assert.h>
+#include <stdlib.h>
 #include <stdint.h>
 #include <wayland-client.h>
 #include "backend/wayland.h"
+#include "common/log.h"
 
 static void seat_handle_capabilities(void *data, struct wl_seat *wl_seat,
 		enum wl_seat_capability caps) {
-	//struct wlr_wl_seat *seat = data;
-	// TODO
+	struct wlr_wl_seat *seat = data;
+	assert(seat->wl_seat == wl_seat);
+	struct wlr_wl_backend *backend = wl_seat_get_user_data(wl_seat);
+	assert(backend);
+
+	if ((caps & WL_SEAT_CAPABILITY_POINTER)) {
+		struct wl_pointer *wl_pointer = wl_seat_get_pointer(wl_seat);
+		struct wlr_wl_pointer *pointer;
+		if (!(pointer = calloc(sizeof(struct wlr_wl_pointer), 1))) {
+			wl_pointer_destroy(wl_pointer);
+			wlr_log(L_ERROR, "Unable to allocate wlr_wl_pointer");
+			return;
+		}
+		pointer->wl_pointer = wl_pointer;
+		//wl_pointer_add_listener(wl_pointer, &pointer_listener, backend->registry); TODO
+	}
+
+	if ((caps & WL_SEAT_CAPABILITY_KEYBOARD)) {
+		struct wl_keyboard *wl_keyboard = wl_seat_get_keyboard(wl_seat);
+		struct wlr_wl_keyboard *keyboard;
+		if (!(keyboard = calloc(sizeof(struct wlr_wl_pointer), 1))) {
+			wl_keyboard_destroy(wl_keyboard);
+			wlr_log(L_ERROR, "Unable to allocate wlr_wl_keyboard");
+			return;
+		}
+		keyboard->wl_keyboard = wl_keyboard;
+		//wl_keyboard_add_listener(wl_keyboard, &keyboard_listener, backend->registry); TODO
+	}
+
+	// TODO: touch
 }
 
 static void seat_handle_name(void *data, struct wl_seat *wl_seat, const char *name) {
 	struct wlr_wl_seat *seat = data;
+	assert(seat->wl_seat == wl_seat);
 	seat->name = name;
 }