vt_move_to_console
set_console(vt_move_to_console(MAX_NR_CONSOLES - 1, 1));
int vt_move_to_console(unsigned int vt, int alloc);
orig_fgconsole = vt_move_to_console(SUSPEND_CONSOLE, 1);
vt_move_to_console(orig_fgconsole, 0);