From abce9deab76124d72c61a824aaa1affc3dbc1260 Mon Sep 17 00:00:00 2001
From: Solodros <34903426+Solodros@users.noreply.github.com>
Date: Thu, 8 Jan 2026 06:16:24 +0800
Subject: [PATCH] fix(hid): initialize missing d_scroll_x field in mouse report
 (#3196)

The static mouse_report definition did not initialize the d_scroll_x
field. The zmk_hid_mouse_report_body structure contains five fields
(buttons, d_x, d_y, d_scroll_y, d_scroll_x), but d_scroll_x was left
uninitialized.

Initialize d_scroll_x to 0 to ensure all fields in the mouse report
are properly initialized and avoid potential undefined behavior.
---
 app/src/hid.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/src/hid.c b/app/src/hid.c
index cf5a557f8..d8700c3f4 100644
--- a/app/src/hid.c
+++ b/app/src/hid.c
@@ -29,7 +29,7 @@ static uint8_t keys_held = 0;
 
 static struct zmk_hid_mouse_report mouse_report = {
     .report_id = ZMK_HID_REPORT_ID_MOUSE,
-    .body = {.buttons = 0, .d_x = 0, .d_y = 0, .d_scroll_y = 0}};
+    .body = {.buttons = 0, .d_x = 0, .d_y = 0, .d_scroll_y = 0, .d_scroll_x = 0}};
 
 #endif // IS_ENABLED(CONFIG_ZMK_POINTING)