Unisys channelstub driver

modulename: visorchannelstub.ko

configname: CONFIG_UNISYS_CHANNELSTUB

Linux Kernel Configuration
└─>Device Drivers
└─>Staging drivers
└─>Unisys SPAR driver support
└─>Unisys channelstub driver
In linux kernel since version 3.15 (release Date: 2014-06-08)  
If you say Y here, you will enable the Unisys channels driver.

source code: