add = 0x3818, value = 0x0                                                      
add = 0x3818, value = 0x10                                                     
add = 0x3818, value = 0x20                                                     
ov5642_write_reg: readback mismatch: reg 3818 20 != 00                         
add = 0x3818, value = 0x40                                                     
ov5642_write_reg: readback mismatch: reg 3818 40 != 00                         
add = 0x3818, value = 0x80                                                     
ov5642_write_reg: readback mismatch: reg 3818 80 != 00                         
add = 0x3818, value = 0x0                                                      
add = 0x3818, value = 0x1                                                      
add = 0x3818, value = 0x2                                                      
add = 0x3818, value = 0x4                                                      
add = 0x3818, value = 0x8                                                      
add = 0x3621, value = 0x0                                                      
add = 0x3621, value = 0x20 

위 에 보이는 것은 각 비트 하나씩만 write한 결과입니다.
카메라 flip기능 구현시 0x3818의 상위 3비트를 write하지 못합니다. 6번째 비트와 7번째 비트가 flip과 mirror에 관한 비트인데
이 비트들만 write되지 않습니다. 왜그런건가요?