Until this is resolved, anyone that have an AR7010/AR9271 based device can
download & install the driver I created a while ago, specifically for
Trisquel.
The driver currently supports all Trisquel releases that has the required
ath9k_htc kernel module built-in (4.5 and up), both 32/64-bit, PAE/Non-PAE
kernels, and also the backported 3.5 kernel from Toutatis.
The download link is available on my profile page, under the Recommended
FLOSS wireless card/dongle section. The reason why I does not post the direct
link here is simply because the download location is a matter of change and I
want to avoid dead/broken links.