.. _bsdlib_extensions:

BSD socket extensions
#####################

In addition to the `standard socket API <https://pubs.opengroup.org/onlinepubs/9699919799/functions/socket.html>`_, the BSD library supports several extensions.

Extensions are available for:

* Packet data network (PDN) management
* Assisted GPS (A-GPS)
* Global Navigation Satellite System (GNSS)
* Modem device firmware update (DFU)
* AT commands


.. toctree::
   :maxdepth: 2

   pdn_extension
   at_commands