WUSB54GC seems to be the compact version of WUSB54G.

perhaps this hardware requires proprietary firmware, as indicated inside the fsf list of devices that do not work with free software: http://www.fsf.org/resources/hw/net/wireless/badcards.html/

I've provisionally mark it as not working

how strange, I have been using it with trisquel and it works out of the box. It havening been great lately though. I'm going to add that to the description.

oh I didn't notice tonicucoz changed the status to not supported by free software. I disagree since I've been using it with trisquel and gnewsense for quite a while, but I'll leave it like that until I find out why did they add it as not supported in the fsf page. See you guys.

Sorry arielenter, the problem is that this device usually requires the r73 driver, which requires the r73.bin firmware (that is non-free). Anyway, it seems that non all the versions of this device use the r73 driver. Perhaps your version does not make use of that driver, and this is why it can work with your free operating system.

Can you please indicate the driver you are currently using? You can find it by means of lsusb, dmesg or sometimes iwconfig

Anyway, it seems this model uses the Ralink RT2500USB driver (see https://usb-ids.gowdy.us/read/UD/13b1). Inside this page (http://rt2x00.serialmonkey.com/wiki/index.php/Main_Page#License_information) you can find information about the Ralink chipset (used by your device)

WUSB54GC and WUSB54G should be two different versions. I've marked the device as working with free software another time. arielenter, can you please confirm that the driver used is not rt73?

Thanks for the help tonicucoz. lsusb gave me back the following: Bus 001 Device 004: ID 13b1:000d Linksys WUSB54G v4 802.11g Adapter [Ralink RT2500USB]. And yes, WUSB54GC and WUSB54G look totally different from each other (I used to have a WUSB54GC V.1) but I never realize that their names where so similar, now I know why we got so confuse. I'm going to add that to the description.