Bug#868195: Note

[Leandro Cunha <leandrocunha526@gmail.com>]

Remembering that I am doing everything according to the Debian Wiki.

Package wireless-tools it installed.

My internal Intel adapter is working perfectly.

Link Debian Wiki about atheros devices https://wiki.debian.org/ath9k_htc

https://packages.debian.org/stretch/wireless-tools

https://wiki.debian.org/WiFi/HowToUse

Packages affecteds

https://packages.debian.org/stretch/linux-image-amd64

https://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git

https://packages.debian.org/stretch/firmware-atheros

So ignoring this error report is ignoring a problem that may be of many users around the world and this would be a big mistake.