1LINUX_REBOOT_CMD_RESTART
2LINUX_REBOOT_CMD_HALT
3LINUX_REBOOT_CMD_CAD_ON
4LINUX_REBOOT_CMD_CAD_OFF
5LINUX_REBOOT_CMD_POWER_OFF
6LINUX_REBOOT_CMD_RESTART2
7LINUX_REBOOT_CMD_SW_SUSPEND
8LINUX_REBOOT_CMD_KEXEC
9