From ec44fd167a74a42bfab767c1c42a952b00bb9727 Mon Sep 17 00:00:00 2001
From: Karan Vijayakumar <karan.v@cross-border.jp>
Date: Thu, 27 Nov 2025 03:10:39 +0900
Subject: [PATCH] Add ESP32-C6 pin validation for strapping and USB-JTAG pins

---
 wled00/pin_manager.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/wled00/pin_manager.cpp b/wled00/pin_manager.cpp
index 709263e1a..729e84503 100644
--- a/wled00/pin_manager.cpp
+++ b/wled00/pin_manager.cpp
@@ -232,6 +232,13 @@ bool PinManager::isPinOk(byte gpio, bool output)
     if (gpio > 21 && gpio < 33) return false;     // 22 to 32: not connected + SPI FLASH
     // JTAG: GPIO39-42 are usually used for inline debugging
     // GPIO46 is input only and pulled down
+  #elif defined(CONFIG_IDF_TARGET_ESP32C6)
+    // strapping pins: 8, 9, 15
+    // GPIO 0-23 directly usable, 24-30 are for SPI flash
+    if (gpio > 23 && gpio < 31) return false;     // 24-30 SPI FLASH
+    #if ARDUINO_USB_CDC_ON_BOOT == 1 || ARDUINO_USB_DFU_ON_BOOT == 1
+    if (gpio == 12 || gpio == 13) return false;   // 12-13 USB-JTAG
+    #endif
   #else
 
     if ((strncmp_P(PSTR("ESP32-U4WDH"), ESP.getChipModel(), 11) == 0) ||    // this is the correct identifier, but....