一、讀取/寫入 某個寄存器地址的值

設備先adb root

1）讀取寄存器地址的值

/proc/driver # echo "0x0a34" > camsensor && dmesg |grep -i a34

2）往寄存器地址寫值

/proc/driver # echo "0x3304 0x66” > camsensor && dmesg |grep -i 3304

操作示例打印：
?
XXX:/proc/driver # echo "0x3304 0x66" > camsensor && dmesg |grep -i 3304
[  361.519092] (1)[3166:sh]write_cmos_sensor 3304
[  361.519351] (1)[3166:sh]read_cmos_sensor 3304
[  361.519369] (1)[3166:sh][imgsensor]---xixi-test,write addr = 0x00003304, data = 0x00000066

調試讀寫操作，對應驅動代碼打印：

 case SENSOR_FEATURE_SET_REGISTER: