default or selected kernelversion does not have config value CONFIG_RTL8192SU.
Result is shown for kernelversion 5.4.229

RealTek RTL8192SU Wireless LAN NIC driver

modulename: r8192s_usb.ko

configname: CONFIG_RTL8192SU

Linux Kernel Configuration
└─>Device Drivers
└─>Staging drivers
└─>Wireless LAN
└─>RealTek RTL8192SU Wireless LAN NIC driver
In linux kernel since version 2.6.31 (release Date: 2009-09-09)  
source code:
drivers/staging/rtl8192su/