This wireless card is not supported by Trisquel. Trisquel only supports free
software compatible wireless cards. This card depends on proprietary
firmware.
Depending on your laptop you may be able to replace the chip with an Atheros
wireless card or alternatively a USB wireless card.
All hardware from http://libre.thinkpenguin.com/ is supported under Trisquel
and other free software distributions.
If you let us know what brand the laptop is I can give you an idea as the
likelihood of being able to replace the internal card. Toshiba, Dell, Lenovo,
and HP laptops are a problem as these companies have been hostile to users
freedoms in recent years. They ship systems with digitally restrictive BIOS
software that prevents the use of third party wifi cards.
Our systems do not include any such restrictions, and whomever you go with we
would advise that you not buy from the above companies.