Let’s say you want to add (not in old SDK) or a new kernel module .
That said, the have a driver called realtek_rtl8196c , which allows basic ethernet routing without Wi-Fi. If you are comfortable compiling your own kernel, you can build OpenWrt from source: rtl8196e openwrt
The RTL8196E chip, when paired with OpenWRT firmware, offers a powerful combination for customizing and enhancing your router's capabilities. With its robust architecture, customizable features, and community-driven support, this pairing is ideal for developers, enthusiasts, and organizations looking to create tailored networking solutions. By exploring the possibilities of RTL8196E with OpenWRT, you can unlock new features, improve performance, and take your networking experience to the next level. Let’s say you want to add (not in