diff --git a/Android/HAL/HalDriver/Android.mk b/Android/HAL/HalDriver/Android.mk
index 15a13c8..b8ed7e5 100644
--- a/Android/HAL/HalDriver/Android.mk
+++ b/Android/HAL/HalDriver/Android.mk
@@ -6,7 +6,9 @@ LOCAL_MODULE                := miccom.default
 LOCAL_MODULE_RELATIVE_PATH  := $(TARGET_OUT_SHARED_LIBRARIIES)/hw
 LOCAL_MODULE_TAGS           := optional
 LOCAL_PRELINK_MODULE        := false
-LOCAL_SHARED_LIBRARIES      := liblog
+LOCAL_VENDOR_MODULE         := true
+LOCAL_LDLIBS                := -llog
+LOCAL_SHARED_LIBRARIES      := libhardware libcutils libutils
 LOCAL_SRC_FILES             := miccom.c
 
 include $(BUILD_SHARED_LIBRARY)
diff --git a/Android/HAL/HalDriver/demo_hal_driver.c b/Android/HAL/HalDriver/demo_hal_driver.c
index b2b6f35..79ad1a9 100644
--- a/Android/HAL/HalDriver/demo_hal_driver.c
+++ b/Android/HAL/HalDriver/demo_hal_driver.c
@@ -10,31 +10,34 @@
  */
 #define LOG_TAG  "MiccomStub"
 
-#include <hard/hardware.h>
+#include <hardware/hardware.h>
+#include <unistd.h>
 #include <fcntl.h>
 #include <errno.h>
 #include <cutils/log.h>
 #include <cutils/atomic.h>
+#include <string.h>
+#include <stdlib.h>
 #include "miccom.h"
 
 #define DEVICE_NAME "/dev/miccom"
 #define MODULE_NAME "Miccom"
-#define MODULE_AUTHOR "cy187lion@sina.com"
+#define MODULE_AUTHOR "chenyang@auotai.com"
 
 static int miccom_device_open(const struct hw_module_t* module, const char* name, struct hw_device_t** device);
 static int miccom_device_close(struct hw_device_t* device);
 static int miccom_set_reg(struct miccom_device_t* dev, char reg, unsigned char num);
 static int miccom_get_reg(struct miccom_device_t* dev, char* reg, unsigned char num);
 
-static struct hw_modult_methods_t miccom_module_methods = {
+static struct hw_module_methods_t miccom_module_methods = {
     .open = miccom_device_open
 };
 
 struct miccom_module_t HAL_MODULE_INFO_SYM = {
     .common = {
         .tag = HARDWARE_MODULE_TAG,
-        .version_major: 1,
-        .version_minor: 0,
+        .version_major = 1,
+        .version_minor = 0,
         .id = MICCOM_HARDWARE_MODULE_ID,
         .name = MODULE_NAME,
         .author = MODULE_AUTHOR,
@@ -48,26 +51,26 @@ static int miccom_device_open(const struct hw_module_t* module, const char* name
 
     dev = (struct hw_device_t*)malloc(sizeof(*dev));
     if(!dev) {
-        LOGE("Miccom stub: failed to alloc space.");
+        ALOGE("Miccom stub: failed to alloc space.");
         return -EFAULT;
     }
     memset(dev, 0, sizeof(*dev));
 
     dev->common.tag = HARDWARE_DEVICE_TAG;
     dev->common.version = 0;
-    dev->common.module = const_cast<hw_module_t *>(module);
+    dev->common.module = (hw_module_t*)(module);
     dev->common.close = miccom_device_close;
     dev->set_reg = miccom_set_reg;
     dev->get_reg = miccom_get_reg;
 
     if(dev->fd = open(DEVICE_NAME, O_RDWR) == -1) {
-        LOGE("Miccom stub: failed to open "DEVICE_NAME" -- %s.", strerror(errno));
+        ALOGE("Miccom stub: failed to open "DEVICE_NAME" -- %s.", strerror(errno));
         free(dev);
         return -EFAULT;
     }
 
     *device = &(dev->common);
-    LOGI("Miccom stub: Open "DEVICE_NAME" successfully.");
+    ALOGI("Miccom stub: Open "DEVICE_NAME" successfully.");
 
     return 0;
 }
@@ -85,16 +88,17 @@ static int miccom_device_close(struct hw_device_t* device)
 
 static int miccom_set_reg(struct miccom_device_t* dev, char reg, unsigned char num)
 {
-    LOGI("Miccom stub: set value %d to device reg.", reg);
-    // write(dev->fd, &reg, num);
+    ALOGI("Miccom stub: set value %d to device reg.", reg);
+    write(dev->fd, &reg, num);
+    return 0;
 }
 
 static int miccom_get_reg(struct miccom_device_t* dev, char* reg, unsigned char num)
 {
     if(!reg) {
-        LOGE("Miccom stub: error reg pointer.");
+        ALOGE("Miccom stub: error reg pointer.");
     }
-    // read(dev->fd, reg, num);
-    LOGI("Miccom stub: get value %d from device reg.", *reg);
+    read(dev->fd, reg, num);
+    ALOGI("Miccom stub: get value %d from device reg.", *reg);
     return 0;
 }
diff --git a/Android/HAL/HalDriver/demo_hal_driver.h b/Android/HAL/HalDriver/demo_hal_driver.h
index bed75c8..e82dc00 100644
--- a/Android/HAL/HalDriver/demo_hal_driver.h
+++ b/Android/HAL/HalDriver/demo_hal_driver.h
@@ -18,7 +18,7 @@ __BEGIN_DECLS
 #define MICCOM_HARDWARE_MODULE_ID "miccom"
 
 struct miccom_module_t {
-    struct hw_modult_t common;
+    struct hw_module_t common;
 };
 
 struct miccom_device_t {
@@ -26,8 +26,8 @@ struct miccom_device_t {
     int fd;
     int (*set_reg)(struct miccom_device_t* dev, char reg, unsigned char num);
     int (*get_reg)(struct miccom_device_t* dev, char* reg, unsigned char num);
-}
+};
 
-_END_DECLS
+__END_DECLS
 
 #endif // _ANDROID_DEMO_HAL_DRIVER_INTERFACE_H_
\ No newline at end of file