Built and installed -current, but much the same here.
Code:
$ uname -mrsv
OpenBSD 5.7 GENERIC.MP#0 amd64
Code:
$ dmesg|grep athn1
athn1 at uhub0 port 8 "ATHEROS USB2.0 WLAN" rev 2.00/1.08 addr 2
athn1: could not load firmware
Code:
$ pkg_info|grep athn
athn-firmware-1.1p1 firmware binary images for athn(4) driver