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-rw-r--r--tmk_core/common/mousekey.h13
1 files changed, 11 insertions, 2 deletions
diff --git a/tmk_core/common/mousekey.h b/tmk_core/common/mousekey.h
index 6eede06b44..9338d0af77 100644
--- a/tmk_core/common/mousekey.h
+++ b/tmk_core/common/mousekey.h
@@ -23,8 +23,17 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
/* max value on report descriptor */
-#define MOUSEKEY_MOVE_MAX 127
-#define MOUSEKEY_WHEEL_MAX 127
+#ifndef MOUSEKEY_MOVE_MAX
+ #define MOUSEKEY_MOVE_MAX 127
+#elif MOUSEKEY_MOVE_MAX > 127
+ #error MOUSEKEY_MOVE_MAX needs to be smaller than 127
+#endif
+
+#ifndef MOUSEKEY_WHEEL_MAX
+ #define MOUSEKEY_WHEEL_MAX 127
+#elif MOUSEKEY_WHEEL_MAX > 127
+ #error MOUSEKEY_WHEEL_MAX needs to be smaller than 127
+#endif
#ifndef MOUSEKEY_MOVE_DELTA
#define MOUSEKEY_MOVE_DELTA 5