How to reboot android phone from kernel code

Question

Is it possible to reboot by calling SYSCALL(sys_reboot,sys_reboot,sys32_reboot_wrapper)?

Answer 1

Actually you can only if your mobile device is rooted. As alternative you can run adb reboot within your code. adb has the super user permission.

Answer 2

//include this file in kernel code

#include<cutils/android_reboot.h>

//call this function

android_reboot(ANDROID_RB_RESTART,0,0);