LINUX_REBOOT_CMD_RESTART
LINUX_REBOOT_CMD_HALT
LINUX_REBOOT_CMD_CAD_ON
LINUX_REBOOT_CMD_CAD_OFF
LINUX_REBOOT_CMD_POWER_OFF
LINUX_REBOOT_CMD_RESTART2
LINUX_REBOOT_CMD_SW_SUSPEND
LINUX_REBOOT_CMD_KEXEC