diff --git a/libc/kernel/common/media/soc2030.h b/libc/kernel/common/media/soc2030.h
index ad0ddfc..850ab13 100644
--- a/libc/kernel/common/media/soc2030.h
+++ b/libc/kernel/common/media/soc2030.h
@@ -12,7 +12,7 @@
 #ifndef __SOC2030_H__
 #define __SOC2030_H__
 
-#include <linux/ioctl.h>  
+#include <linux/ioctl.h>
 
 #define SOC2030_IOCTL_SET_MODE _IOWR('o', 1, struct soc2030_mode)
 #define SOC2030_IOCTL_GET_STATUS _IOC(_IOC_READ, 'o', 2, 10)
@@ -22,10 +22,11 @@
 #define SOC2030_IOCTL_SET_EFFECT _IOWR('o', 6, unsigned int)
 #define SOC2030_IOCTL_SET_WHITEBALANCE _IOWR('o', 7, unsigned int)
 #define SOC2030_IOCTL_SET_EXP_COMP _IOWR('o', 8, int)
+#define SOC2030_IOCTL_SET_LOCK _IOWR('o', 9, struct soc2030_lock)
 
 #define SOC2030_POLL_WAITMS 50
 #define SOC2030_MAX_RETRIES 3
-#define SOC2030_POLL_RETRIES 5
+#define SOC2030_POLL_RETRIES 7
 
 #define SOC2030_MAX_PRIVATE_SIZE 1024
 #define SOC2030_MAX_NUM_MODES 6
@@ -45,8 +46,21 @@
  WRITE_VAR_DATA,
  POLL_VAR_DATA,
  DELAY_MS,
+ WRITE_REG_VAR1,
+ WRITE_REG_VAR2,
+ WRITE_REG_VAR3,
+ WRITE_REG_VAR4,
+ READ_REG_VAR1,
+ READ_REG_VAR2,
+ READ_REG_VAR3,
+ READ_REG_VAR4,
 };
 
+#define REG_VAR1 (READ_REG_VAR1 - READ_REG_VAR1)
+#define REG_VAR2 (READ_REG_VAR2 - READ_REG_VAR1)
+#define REG_VAR3 (READ_REG_VAR3 - READ_REG_VAR1)
+#define REG_VAR4 (READ_REG_VAR4 - READ_REG_VAR1)
+
 enum {
  EFFECT_NONE,
  EFFECT_BW,
@@ -74,6 +88,14 @@
  __u16 val;
 };
 
+struct soc2030_lock {
+        __u8 aelock;
+        __u8 aerelock;
+        __u8 awblock;
+        __u8 awbrelock;
+        __u8 previewactive;
+};
+
 struct soc2030_mode {
  int xres;
  int yres;
@@ -82,5 +104,3 @@
 };
 
 #endif
-
-