tools: add --set-scroll-button as option

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/tools/shared.h b/tools/shared.h
index 7b037882..a1aec462 100644
--- a/tools/shared.h
+++ b/tools/shared.h
@@ -42,6 +42,7 @@ struct tools_options {
 	int middlebutton;
 	enum libinput_config_click_method click_method;
 	enum libinput_config_scroll_method scroll_method;
+	int scroll_button;
 	double speed;
 };