backend/libinput: check bus type before setting tablet USB IDs

References: https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/977

backend/libinput/meson.build

@@ -31,3 +31,4 @@ wlr_deps += libinput
 # libinput hold gestures and high resolution scroll are available since 1.19.0
 internal_config.set10('HAVE_LIBINPUT_HOLD_GESTURES', libinput.version().version_compare('>=1.19.0'))
 internal_config.set10('HAVE_LIBINPUT_SCROLL_VALUE120', libinput.version().version_compare('>=1.19.0'))
+internal_config.set10('HAVE_LIBINPUT_BUSTYPE', libinput.version().version_compare('>=1.26.0'))

backend/libinput/tablet_tool.c

@@ -1,6 +1,7 @@
 #include <string.h>
 #include <assert.h>
 #include <libinput.h>
+#include <linux/input.h>
 #include <stdlib.h>
 #include <wlr/interfaces/wlr_tablet_tool.h>
 #include <wlr/util/log.h>
@@ -20,8 +21,14 @@ void init_device_tablet(struct wlr_libinput_input_device *dev) {
 	const char *name = get_libinput_device_name(dev->handle);
 	struct wlr_tablet *wlr_tablet = &dev->tablet;
 	wlr_tablet_init(wlr_tablet, &libinput_tablet_impl, name);
-	wlr_tablet->usb_vendor_id = libinput_device_get_id_vendor(dev->handle);
-	wlr_tablet->usb_product_id = libinput_device_get_id_product(dev->handle);
+
+#if HAVE_LIBINPUT_BUSTYPE
+	if (libinput_device_get_id_bustype(dev->handle) == BUS_USB)
+#endif
+	{
+		wlr_tablet->usb_vendor_id = libinput_device_get_id_vendor(dev->handle);
+		wlr_tablet->usb_product_id = libinput_device_get_id_product(dev->handle);
+	}
 
 	libinput_device_get_size(dev->handle, &wlr_tablet->width_mm,
 		&wlr_tablet->height_mm);