diff --git a/osal/driver/mpp_device.c b/osal/driver/mpp_device.c
index ff917ba0..a8fe5af6 100644
--- a/osal/driver/mpp_device.c
+++ b/osal/driver/mpp_device.c
@@ -18,6 +18,7 @@
 
 #include <string.h>
 
+#include "mpp_env.h"
 #include "mpp_log.h"
 #include "mpp_mem.h"
 
@@ -41,6 +42,8 @@ MPP_RET mpp_dev_init(MppDev *ctx, MppClientType type)
         return MPP_ERR_NULL_PTR;
     }
 
+    mpp_env_get_u32("mpp_device_debug", &mpp_device_debug, 0);
+
     *ctx = NULL;
 
     RK_U32 codec_type = mpp_get_vcodec_type();
diff --git a/osal/driver/mpp_service.c b/osal/driver/mpp_service.c
index 4b1c608a..eb8b229b 100644
--- a/osal/driver/mpp_service.c
+++ b/osal/driver/mpp_service.c
@@ -22,6 +22,7 @@
 #include <string.h>
 
 #include "mpp_log.h"
+#include "mpp_env.h"
 #include "mpp_common.h"
 
 #include "mpp_device_debug.h"
@@ -133,6 +134,9 @@ void check_mpp_service_cap(RK_U32 *codec_type, RK_U32 *hw_ids, MppServiceCmdCap
     RK_U32 val;
     RK_U32 i;
 
+    /* for device check on startup */
+    mpp_env_get_u32("mpp_device_debug", &mpp_device_debug, 0);
+
     *codec_type = 0;
     memset(hw_ids, 0, sizeof(RK_U32) * 32);