SFB_REG_VID_VER
info->var.yres = (sfb_read(par, SFB_REG_VID_VER) >>
info->var.upper_margin = (sfb_read(par, SFB_REG_VID_VER) >>
info->var.lower_margin = (sfb_read(par, SFB_REG_VID_VER) >>
info->var.vsync_len = (sfb_read(par, SFB_REG_VID_VER) >>