| # SPDX-License-Identifier: GPL-2.0-only | 
 | menuconfig SIOX | 
 | 	tristate "Eckelmann SIOX Support" | 
 | 	help | 
 | 	  SIOX stands for Serial Input Output eXtension and is a synchronous | 
 | 	  bus system invented by Eckelmann AG. It is used in their control and | 
 | 	  remote monitoring systems for commercial and industrial refrigeration | 
 | 	  to drive additional I/O units. | 
 |  | 
 | 	  Unless you know better, it is probably safe to say "no" here. | 
 |  | 
 | if SIOX | 
 |  | 
 | config SIOX_BUS_GPIO | 
 | 	tristate "SIOX GPIO bus driver" | 
 | 	help | 
 | 	  SIOX bus driver that controls the four bus lines using GPIOs. | 
 |  | 
 | endif |