Not sure of my USB devices identity...

Steven Friedrich FreeBSD at twc.com
Sun Feb 21 08:47:10 UTC 2021


When I plug it in after boot, I get this in dmesg:
ugen0.5: <Realtek 802.11ac WLAN Adapter> at usbus0
rtwn0 on uhub0
rtwn0: <802.11ac WLAN Adapter > on usbus0
rtwn0: MAC/BB RTL8821AU, RF 6052 1T1R	NOTE that it self-identifies as 
8821au
rtwn0: 11a rates: 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
rtwn0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
rtwn0: 11g rates: 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 
36Mbps 48Mbps 54Mbps
rtwn0: 1T1R
rtwn0: 11na MCS 20MHz
rtwn0: MCS 0-7: 6.5Mbps - 65Mbps
rtwn0: 11na MCS 20MHz SGI
rtwn0: MCS 0-7: 7Mbps - 72Mbps
rtwn0: 11ng MCS 20MHz
rtwn0: MCS 0-7: 6.5Mbps - 65Mbps
rtwn0: 11ng MCS 20MHz SGI
rtwn0: MCS 0-7: 7Mbps - 72Mbps
wlan0: bpf attached
wlan0: bpf attached
wlan0: Ethernet address: 08:36:c9:1b:08:de
firmware: 'rtwn-rtl8821aufw' version 111: 27804 bytes loaded at 
0xffffffff82913000
# lsusb	Identfies it as 8811au (but this is AFTER it loaded firmware)
Bus /dev/usb Device /dev/ugen0.5: ID 0846:9052 NetGear, Inc. A6100 AC600 DB 
Wireless Adapter [Realtek RTL8811AU]

And on the motherboard I have a similar chip:
none6 at pci0:2:0:0:       class=0x028000 card=0x831a103c chip=0xc82110ec 
rev=0x00 hdr=0x00
    vendor     = 'Realtek Semiconductor Co., Ltd.'
    device     = 'RTL8821CE 802.11ac PCIe Wireless Network Adapter'
    class      = network
but the motherboard device is NOT recognized by rtwn driver.
I built both rtwn_pci and rtwn_usb into my kernel.
The rtwnfw man page lists device rtwn-rtl8821aufw, but doesn't list a device 
rtwn-rtl8821cefw

I'm hoping in the near future the motherboard device becomes supported.
-- 
FreeBSD FreeBSD 12.2-RELEASE-p3 FreeBSD 12.2-RELEASE-p3 r369327 Special  amd64
HP-Slimline 290-p0014 Desktop
Using integrated UHD Graphics 630
Built drm from /usr/ports/drm-kmod





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