atmel-firmware 1.3-4 (amd64 binary) in ubuntu xenial

 The drivers for these chips in the Linux 2.6.x kernel do not include
 the firmware; this firmware needs to be loaded by the host on most
 cards using these chips. This package provides the firmware images
 which should be automatically loaded as needed by the hotplug
 system. It also provides a small loader utility which can be used to
 accomplish the same thing when hotplug is not in use.