From 6042411a012e63f41756549fff184e5ddca45a8c Mon Sep 17 00:00:00 2001
From: chenjiangqun <jiangqun.chen@tcl.com>
Date: Tue, 30 Jun 2026 18:56:58 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0=E6=8C=87=E4=BB=A4=E6=89=93?=
 =?UTF-8?q?=E5=8D=B0=E6=97=A5=E5=BF=97?=
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---
 .../WinISP/BaseClass/GraphicCardI2CCtrl.cs    | 29 +++++++++----------
 1 file changed, 13 insertions(+), 16 deletions(-)

diff --git a/WIN10_WinISP_SrcCode_For_MOKA_20250416_1/WinISP/BaseClass/GraphicCardI2CCtrl.cs b/WIN10_WinISP_SrcCode_For_MOKA_20250416_1/WinISP/BaseClass/GraphicCardI2CCtrl.cs
index 8f18f6f..6ea107e 100644
--- a/WIN10_WinISP_SrcCode_For_MOKA_20250416_1/WinISP/BaseClass/GraphicCardI2CCtrl.cs
+++ b/WIN10_WinISP_SrcCode_For_MOKA_20250416_1/WinISP/BaseClass/GraphicCardI2CCtrl.cs
@@ -248,33 +248,30 @@ namespace WinISP.BaseClass
         {
             throw new NotImplementedException();
         }
-    
+
         public bool WriteData(byte[] data)
         {
             Byte slvAddr = data[0];
             Byte[] wrBuf = new Byte[data.Length - 1];
             Array.Copy(data, 1, wrBuf, 0, wrBuf.Length);
-            const Byte maxWrLen = 16;
-            int idx = 0;
-            unsafe
-            {
-                fixed (Byte* pArr = wrBuf)
-                {
-                    return DDCWrite(pGraphicCardCtrl, slvAddr, (uint)(wrBuf.Length), wrBuf);
-                }
-            }
+
+            bool ret = DDCWrite(pGraphicCardCtrl, slvAddr, (uint)wrBuf.Length, wrBuf);
+            frmISP.WriteLog($"[DDCWrite] card={GraphicCardType} slv=0x{slvAddr:X2} len={wrBuf.Length} ret={ret}", ret ? "debug" : "error");
+            return ret;
         }
 
         public bool ReadData(byte[] data, byte[] wrCmds = null)
         {
-            uint revlen = (uint)data.Length;
-            unsafe
+            if (wrCmds == null || wrCmds.Length == 0)
             {
-                fixed (Byte* pArr = data)
-                {
-                    return DDCRead(pGraphicCardCtrl, wrCmds[0], revlen, data);
-                }
+                frmISP.WriteLog($"[DDCRead] card={GraphicCardType} wrCmds is NULL/empty!", "error");
+                return false;
             }
+            uint revlen = (uint)data.Length;
+            bool ret = DDCRead(pGraphicCardCtrl, wrCmds[0], revlen, data);
+            frmISP.WriteLog($"[DDCRead] card={GraphicCardType} slv=0x{wrCmds[0]:X2} rdLen={revlen} ret={ret} " +
+                            $"first4={(data.Length >= 4 ? BitConverter.ToString(data, 0, 4) : "n/a")}", ret ? "debug" : "error");
+            return ret;
         }
 
         public bool Init()