atheros 5223 issue on FreeBSD 12?

[Sreenath Battalahalli]

Hi all,

I have an Intellinet USB wifi adapter that has a Atheros 5223 chip.
It was working with Freebsd 10. I recently upgraded to FreeBSD 12
"FreeBSD 12.0-RELEASE r341666 GENERIC  amd64",  and the device does not work anymore.

Here is dmesg output when the device is inserted into USAB slot.
-------------------------------
uath0: <Atheros Communications Inc AR5523, rev 2.00/0.01, addr 8> on usbus0
uath0: uath_cmdeof: invalid WDC msg length 671088640; msg ignored
uath0: timeout waiting for reply to cmd 0x4 (4)
uath0: could not read capability 2
uath0: could not get device capabilities
device_attach: uath0 attach returned 35
---------------------------------

Is this a known issue with FreeBSD 12? Has anyone faced similar problem?

thanks,
Sreenath