CZ.NIC Turris Mox module configuration bus

modulename: moxtet.ko

configname: CONFIG_MOXTET

Linux Kernel Configuration
└─>Device Drivers
└─>Bus devices
└─>CZ.NIC Turris Mox module configuration bus
In linux kernel since version 5.1 (release Date: 2019-05-05)  
Say yes here to add support for the module configuration bus found
on CZ.NIC's Turris Mox. This is needed for the ability to discover
the order in which the modules are connected and to get/set some of
their settings. For example the GPIOs on Mox SFP module are
configured through this bus.

source code: