void ctl_gfx_controller_move_cursor_at_0x4e_0x4f(CTL_GFX_CONTROLLER_t *self, int x, int y);
ctl_gfx_controller_move_cursor_at_0x4e_0x4f issues the "move cursor" command to an Samsung-like graphics controller with horizontal and vertical registers at 0x4e and 0x4f.