diff --git a/ds18b20.c b/ds18b20.c
index 20083ba..d93a34c 100755
--- a/ds18b20.c
+++ b/ds18b20.c
@@ -50,18 +50,16 @@ unsigned char read_char(void)
     unsigned char dat = 0;
 
   //  spin_lock(&lock);
-	DQ_OUT;
     for(i=0; i<8; i++) {
+	    DQ_OUT;
 		DQ_L;
 		udelay(2);
-		dat >>= 1;
         DQ_IN;
-		udelay(12);
+		dat >>= 1;
+		udelay(2);
         if (DQ_V)
             dat |= 0x80;
-        udelay(50);
-		DQ_OUT;
-		udelay(2);
+        udelay(60);
     }
     //spin_unlock(&lock);
     return dat;
@@ -125,6 +123,7 @@ void readDs18b20Data(unsigned char *value)
 //    local_irq_enable();
 
     mdelay(750);
+    //msleep(750);
 
 //    local_irq_disable();
 
@@ -136,11 +135,27 @@ void readDs18b20Data(unsigned char *value)
     }
     write_char(0xCC);
     write_char(0xBE);
-//    local_irq_enable();
-    mutex_unlock(&mutex);
 
     value[0] = read_char();
     value[1] = read_char();
+//    local_irq_enable();
+    mutex_unlock(&mutex);
+
+    //printk("%d: TH:%x, TL:%x, c:%x", gpio_num,read_char(),read_char(),read_char());
+
+//    mdelay(1);
+
+  //  init_DS18B20();
+    //write_char(0xB4);
+    //DQ_OUT;
+    //printk("%d: EC:%d", gpio_num,DQ_V);
+    //write_char(0x4E);
+    //write_char(0x64);
+    //write_char(0x00);
+    //write_char(0x7F);
+
+    //init_DS18B20();
+    //write_char(0x48);
 }
 
 void freeDs18b20(void)