linux-drivers/
drivers/net/wireless/realtek/rtl8xxxu

Realtek RTL8xxx USB 802.11n Wi-Fi Adapters

A family of inexpensive USB Wi-Fi dongles built around Realtek's RTL8188, RTL8192, and RTL8723 series 802.11n chipsets, sold under brands like TP-Link (TL-WN821N, TL-WN823N) and many no-name Chinese OEMs from the early 2010s through today. These are the small plug-in adapters commonly bundled with cheap PCs, used to add Wi-Fi to desktops, or shipped with single-board computers.

keep conf=0.90 deploy=low replacement=none subsystem=net category=networking-wireless
90%

recommendation

It should stay because the code is still actively maintained upstream, with Realtek engineers posting fixes as recently as 2026, and the supported dongles continue to be manufactured and sold new in 2025. While popular models like TP-Link's TL-WN823N have reached end-of-life, equivalent RTL8188GU and RTL8192EU adapters keep appearing on store shelves, and there is no other in-tree driver that covers this range of USB chips.

repository signals

13 files
24,335 source lines
179 commits, 5y
+12,052 / −1,739 lines added / removed, 5y
36 authors, 5y
monthly commits · 2021-04-21 → 2026-04-21 · 179 total · active in 43/61 months
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sources

  1. lore.kernel.org

    rtl8xxxu still receives upstream fixes in 2026; this patch validates action-frame size in rtl8xxxu_dump_action().

  2. linux-hardware.org

    TP-Link TL-WN821N v5/v6 (RTL8192EU, served by rtl8xxxu) shows substantial modern probe data, indicating some continued field deployment.

  3. linux-hardware.org

    RTL8188GU devices are associated with rtl8xxxu in current kernel support tables, and probes exist on recent systems.

  4. tp-link.com

    A mainstream rtl8xxxu-served product family (TL-WN823N) is officially listed by TP-Link, though marked End of Life.

  5. pixlink.en.made-in-china.com

    RTL8188GU USB Wi-Fi adapters were still being offered for sale by manufacturers in 2026, implying new-sale availability persisted through 2025.

  6. wikidevi.wi-cat.ru

    rtl8xxxu is the in-kernel mac80211 driver family for Realtek RTL8188/8192/8723-class USB chips.

codex reasoning notes (technical)

Local tree inspection via shell showed this is an in-kernel USB WLAN driver for Realtek 802.11n parts. lore_file_timeline on drivers/net/wireless/realtek/rtl8xxxu/core.c returned dense 2024-2026 activity and a 2026 lore URL, with no removal signal in the recent timeline, so this is not an obsolescent dead driver. Web search produced linux-hardware device pages showing current probe activity for rtl8xxxu-supported RTL8192EU/RTL8188GU adapters, and vendor/marketplace pages showing such adapters still sold in 2026. Official TP-Link page also shows at least one mainstream model is EOL, so deployments are best characterized as low rather than medium/high. No single upstream replacement cleanly supersedes rtl8xxxu across its broad USB device set.