default or selected kernelversion does not have config value CONFIG_SB105X.
Result is shown for kernelversion 6.5.1
SystemBase PCI Multiport UART
modulename:  sb105x.ko
configname: CONFIG_SB105X
Linux Kernel Configuration
└─>Device Drivers
└─>Staging drivers
└─>SystemBase PCI Multiport UART
In linux kernel since version 3.1 (release Date: 2011-10-24)
A driver for the SystemBase Multi-2/PCI serial card
To compile this driver a module, choose M here: the module
will be called "sb105x".
To compile this driver a module, choose M here: the module
will be called "sb105x".