From d77f1e8eb6f53cdb55987165b36e301daf1f9828 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Berger?= <cedric@precidata.com>
Date: Fri, 26 Dec 2025 17:27:05 +0100
Subject: [PATCH] Prevent unused-variable warning in dcd_host.c

'idx' is not used if CFG_TUH_CDC_LINE_CODING_ON_ENUM is not defined.
---
 src/class/cdc/cdc_host.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/class/cdc/cdc_host.c b/src/class/cdc/cdc_host.c
index 32f6827b0..f19c4a327 100644
--- a/src/class/cdc/cdc_host.c
+++ b/src/class/cdc/cdc_host.c
@@ -828,7 +828,9 @@ static bool set_line_state_on_enum(cdch_interface_t *p_cdc, tuh_xfer_t *xfer) {
     ENUM_SET_LINE_CONTROL,
     ENUM_SET_LINE_COMPLETE,
   };
+  #ifdef CFG_TUH_CDC_LINE_CODING_ON_ENUM
   const uint8_t idx = get_idx_by_ptr(p_cdc);
+  #endif
   const uintptr_t state = xfer->user_data;
 
   switch (state) {