diff --git a/libc/arch-arm/bionic/atexit.S b/libc/arch-arm/bionic/atexit.S
index aa1e18d..beea685 100644
--- a/libc/arch-arm/bionic/atexit.S
+++ b/libc/arch-arm/bionic/atexit.S
@@ -37,16 +37,10 @@
 	.eabi_attribute 26, 2
 	.eabi_attribute 30, 4
 	.eabi_attribute 18, 4
-	.code	16
-	.section	.text.atexit,"ax",%progbits
-	.align	2
-	.global	atexit
 	.hidden	atexit
 	.code	16
 	.thumb_func
-	.type	atexit, %function
-atexit:
-	.fnstart
+ENTRY(atexit)
 .LFB0:
 	.save	{r4, lr}
 	push	{r4, lr}
@@ -64,6 +58,5 @@
 .L3:
 	.word	__dso_handle-(.LPIC0+4)
 .LFE0:
-	.fnend
-	.size	atexit, .-atexit
+END(atexit)
 #endif
diff --git a/libc/arch-arm/bionic/memcpy.S b/libc/arch-arm/bionic/memcpy.S
index 04ba848..438fa00 100644
--- a/libc/arch-arm/bionic/memcpy.S
+++ b/libc/arch-arm/bionic/memcpy.S
@@ -34,16 +34,11 @@
         .text
         .fpu    neon
 
-        .global memcpy
-        .type memcpy, %function
-        .align 4
-
 /* a prefetch distance of 4 cache-lines works best experimentally */
 #define CACHE_LINE_SIZE     64
 #define PREFETCH_DISTANCE   (CACHE_LINE_SIZE*4)
 
-memcpy:
-        .fnstart
+ENTRY(memcpy)
         .save       {r0, lr}
         stmfd       sp!, {r0, lr}
 
diff --git a/libc/arch-arm/bionic/strcmp.S b/libc/arch-arm/bionic/strcmp.S
index 9fdbd56..764a531 100644
--- a/libc/arch-arm/bionic/strcmp.S
+++ b/libc/arch-arm/bionic/strcmp.S
@@ -28,13 +28,10 @@
  */
 
 #include <machine/cpu-features.h>
+#include <machine/asm.h>
 
 	.text
 
-	.global strcmp
-	.type strcmp, %function
-	.align 4
-
 #ifdef __ARMEB__
 #define SHFT2LSB lsl
 #define SHFT2LSBEQ lsleq
@@ -54,8 +51,7 @@
 #define magic1(REG) REG
 #define magic2(REG) REG, lsl #7
 
-strcmp:
-	.fnstart
+ENTRY(strcmp)
 	PLD(r0, #0)
 	PLD(r1, #0)
 	eor	r2, r0, r1
@@ -136,7 +132,6 @@
 #endif
 	ldr	r4, [sp], #4
 	bx	lr
-	.fnend
 
 .Lstrcmp_unaligned:
 	wp1 .req r0
@@ -319,3 +314,4 @@
 	ldr	r4, [sp], #4
 	ldr	r5, [sp], #4
 	bx	lr
+END(strcmp)
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
-
-