diff --git a/ds18b20.c b/ds18b20.c
index 743be2a..c8cb666 100755
--- a/ds18b20.c
+++ b/ds18b20.c
@@ -26,6 +26,8 @@ int init_DS18B20(void)
 {
 	unsigned int result;
 	DQ_OUT;
+	DQ_H;
+	udelay(2);
 	DQ_L;
 	udelay(480); //480~960
 	DQ_H;
@@ -34,6 +36,7 @@ int init_DS18B20(void)
 	result = DQ_V;
 	udelay(420);
 	DQ_OUT;
+	DQ_H;
     printk("ds18b20 init result %d", result);
     return result;
 }
@@ -96,11 +99,12 @@ void write_char(unsigned char dat)
     for(i=0; i<8; i++) 
 	{
         DQ_L;
+        udelay(10);
 		if (dat & 0x01)
 			DQ_H;
 		else
 			DQ_L;
-        udelay(60);
+        udelay(50);
 		dat >>= 1;
     }
     //spin_unlock(&lock);
diff --git a/ds18b20_223.mod.c b/ds18b20_223.mod.c
new file mode 100644
index 0000000..ad91d0d
--- /dev/null
+++ b/ds18b20_223.mod.c
@@ -0,0 +1,27 @@
+#include <linux/module.h>
+#include <linux/vermagic.h>
+#include <linux/compiler.h>
+
+MODULE_INFO(vermagic, VERMAGIC_STRING);
+
+__visible struct module __this_module
+__attribute__((section(".gnu.linkonce.this_module"))) = {
+	.name = KBUILD_MODNAME,
+	.init = init_module,
+#ifdef CONFIG_MODULE_UNLOAD
+	.exit = cleanup_module,
+#endif
+	.arch = MODULE_ARCH_INIT,
+};
+
+#ifdef RETPOLINE
+MODULE_INFO(retpoline, "Y");
+#endif
+
+static const char __module_depends[]
+__used
+__attribute__((section(".modinfo"))) =
+"depends=";
+
+
+MODULE_INFO(srcversion, "3C1EE49178DE9599A3E3742");
diff --git a/ds18b20_224.mod.c b/ds18b20_224.mod.c
new file mode 100644
index 0000000..0d19538
--- /dev/null
+++ b/ds18b20_224.mod.c
@@ -0,0 +1,27 @@
+#include <linux/module.h>
+#include <linux/vermagic.h>
+#include <linux/compiler.h>
+
+MODULE_INFO(vermagic, VERMAGIC_STRING);
+
+__visible struct module __this_module
+__attribute__((section(".gnu.linkonce.this_module"))) = {
+	.name = KBUILD_MODNAME,
+	.init = init_module,
+#ifdef CONFIG_MODULE_UNLOAD
+	.exit = cleanup_module,
+#endif
+	.arch = MODULE_ARCH_INIT,
+};
+
+#ifdef RETPOLINE
+MODULE_INFO(retpoline, "Y");
+#endif
+
+static const char __module_depends[]
+__used
+__attribute__((section(".modinfo"))) =
+"depends=";
+
+
+MODULE_INFO(srcversion, "9B05B907F56030A0F0E6D67");