diff --git a/include/event-names.h b/include/event-names.h
index a8797e4e9f380fbdfb8926e662113c0e1ad687a8..dffd148b22677a728017f146f704f6c83be136e2 100644
--- a/include/event-names.h
+++ b/include/event-names.h
@@ -62,6 +62,7 @@ static const char * const abs_map[ABS_MAX + 1] = {
     [ABS_TILT_Y] = "ABS_TILT_Y",
     [ABS_TOOL_WIDTH] = "ABS_TOOL_WIDTH",
     [ABS_VOLUME] = "ABS_VOLUME",
+    [ABS_HAND_FEATURE] = "ABS_HAND_FEATURE",
     [ABS_MISC] = "ABS_MISC",
     [ABS_RESERVED] = "ABS_RESERVED",
     [ABS_MT_SLOT] = "ABS_MT_SLOT",
@@ -893,6 +894,7 @@ static const struct name_entry ev_names[] = {
 };
 
 static const struct name_entry code_names[] = {
+    { .name = "ABS_HAND_FEATURE", .value = ABS_HAND_FEATURE },
     { .name = "ABS_BRAKE", .value = ABS_BRAKE },
     { .name = "ABS_DISTANCE", .value = ABS_DISTANCE },
     { .name = "ABS_GAS", .value = ABS_GAS },
diff --git a/include/linux/linux/input-event-codes.h b/include/linux/linux/input-event-codes.h
index 1d921ff29926ff9fc71f8095cfb6582ff01f3455..69d862639f618420b17f6ef920a98762f6aa3727 100644
--- a/include/linux/linux/input-event-codes.h
+++ b/include/linux/linux/input-event-codes.h
@@ -862,7 +862,7 @@
 #define ABS_TOOL_WIDTH		0x1c
 
 #define ABS_VOLUME		0x20
-
+#define ABS_HAND_FEATURE 0x21
 #define ABS_MISC		0x28
 
 /*