diff --git a/SBC/rpi-4/device_driver/firmware/radioberry.c b/SBC/rpi-4/device_driver/firmware/radioberry.c
index 228c8ca..0870273 100644
--- a/SBC/rpi-4/device_driver/firmware/radioberry.c
+++ b/SBC/rpi-4/device_driver/firmware/radioberry.c
@@ -73,7 +73,6 @@ int initRadioberry() {
 	sem_init(&tx_empty, 0, TX_MAX); 
     sem_init(&tx_full, 0, 0); 
 
-	gettimeofday(&t10, 0);	
 	gettimeofday(&t20, 0);	
 
 	memset(commands,0,256); // initialise the commands.	
diff --git a/SBC/rpi-4/device_driver/firmware/radioberry_ioctl.h b/SBC/rpi-4/device_driver/firmware/radioberry_ioctl.h
index 1c19d81..25d2602 100644
--- a/SBC/rpi-4/device_driver/firmware/radioberry_ioctl.h
+++ b/SBC/rpi-4/device_driver/firmware/radioberry_ioctl.h
@@ -6,12 +6,16 @@
 
 #define RADIOBERRY_MAGIC	('x')
 
-#define RADIOBERRY_IOC_START_STREAM		_IOW(RADIOBERRY_MAGIC, 1, __u8)
-#define RADIOBERRY_IOC_STOP_STREAM		_IOW(RADIOBERRY_MAGIC, 2, __u8)
-#define RADIOBERRY_IOC_COMMAND_WRITE	_IOW(RADIOBERRY_MAGIC, 3, __u8)
-#define RADIOBERRY_IOC_COMMAND_READ		_IOW(RADIOBERRY_MAGIC, 4, __u8)
-#define RADIOBERRY_IOC_FREQ2			_IOW(RADIOBERRY_MAGIC, 5, __u8)
-#define RADIOBERRY_IOC_FREQ3			_IOW(RADIOBERRY_MAGIC, 6, __u8)
-#define RADIOBERRY_IOC_FREQ4			_IOW(RADIOBERRY_MAGIC, 7, __u8)
+#define RADIOBERRY_IOC_COMMAND			_IOW(RADIOBERRY_MAGIC, 1, __u8)
+
+struct rb_info_arg_t
+{
+    int major, minor;
+	
+	int rb_command;
+	int command;
+	int command_data;
+	
+} ;
 
 #endif