IPW_REG_GP_CNTRL
write_register(priv->net_dev, IPW_REG_GP_CNTRL,
read_register(priv->net_dev, IPW_REG_GP_CNTRL, &r);
read_register(priv->net_dev, IPW_REG_GP_CNTRL, &r);
write_register(priv->net_dev, IPW_REG_GP_CNTRL,