Comment # 3 on bug 1083843 from Stefan Br�ns

(In reply to Martin Hauke from comment #2)
> I'm not a lawyer but I would say it's the MIT license.
> 
> https://github.com/Nuand/bladeRF/tree/master/legal/licenses
> https://github.com/Nuand/bladeRF/blob/master/debian/copyright

Although the sources created by Nuand (are where they hold the copyright via
copyright assignment) are licensed as MIT, this does not apply to the firmware
image as a whole.

The bladeRF-fx3-firmware package contains the linked firmware binary. Creating
the firmware image requires one to download the SDK from Cypress. To download
the SDK, one has to acknowledge a license agreement (which is officially only
contained in the SDK, i.e. you can read it only after acknowledging it).

IANAL either, but after careful reading the the license and posts from Cypress
representatives in their forum, a SDK based firmware can be freely
redistributable, but is not "free software" in any form.