
download kernel 'linux-firmware':

# git clone git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git linux-firmware --depth 1

organise as linux-firmware/lib/firmware

non-free:

http://ftp.debian.org/debian/pool/non-free/f/firmware-nonfree/

...check for latest.

organise as linux-firmware-nonfree/lib/firmware

extra
-----

this is a bit old:
https://packages.ubuntu.com/trusty-updates/linux-firmware-nonfree

http://mirrordirector.raspbian.org/raspbian/pool/non-free/f/firmware-nonfree/

----------------
dec 2, 2019
ref: downloads2/input538/0-firmware

get more firmware:

https://www.archlinux.org/packages/extra/any/alsa-firmware/

https://www.archlinux.org/packages/core/any/linux-firmware/

https://www.archlinux.org/packages/core/any/ipw2200-fw/

https://github.com/OpenELEC/wlan-firmware

have accumulated everything into input538/0-firmware/firmwareEVERYTHING
