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ap: parallel 2.4GHz AP (hostapd-2g) on the Linksys WUSB6300v2 dongle

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Second radio (wlxd8ec5e2faa8c, RTL8822BU/rtw88), same VanLink SSID+PSK,
ch6 HT20, bridged into br0 next to the 5GHz AP. Runs as its own hostapd
instance + own watchdog so a USB wedge on one radio never darkens the
other; van-ap-watchdog now takes conf path + unit name as args (defaults
unchanged). rtw88.conf disables deep power-save (rtw89 gotcha analog)
and the driver's USB2->3 self-upgrade (USB3 noise in the 2.4GHz band —
note: dongle currently sits in a USB3 port, so it still enumerates
SuperSpeed; move to a USB2 port if 2.4GHz range disappoints).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Andreas Wrede
2026-07-06 10:03:16 -04:00
co-authored by Claude Fable 5
parent a7819edbc2
commit e652b0f7bd
9 changed files with 106 additions and 17 deletions
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ap/rtw88.conf
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# 2.4GHz AP dongle (Linksys WUSB6300 v2, RTL8822BU, rtw88_8822bu).
# Deep power-save has no business on an always-on AP radio — same reasoning as the
# rtw89 disable_ps_mode gotcha on the 5GHz dongle (rtw89.conf).
options rtw88_core disable_lps_deep=Y
# Don't let the driver switch a USB2-enumerated dongle up to USB3: USB3 signalling
# radiates broadband noise right across the 2.4GHz band, and HT20 rates fit in USB2
# easily. NOTE: this only blocks the driver's own USB2->3 switch — a dongle sitting in
# a USB3 port still enumerates at SuperSpeed (it currently does); move it to a USB2
# port if 2.4GHz range/interference ever looks poor.
options rtw88_usb switch_usb_mode=N