consistent indentation and explicit enum values
add default case to silence compile warning
consistent indentation
remove unused define
rename PAYLOAD_LENGTH to CSMA_PAYLOAD_LENGTH
use struct size instead of magic number
whitespace
delete unused define
rename  CS_STAT_REQ_PORT to CSMA_PORT
cleanup creation of per packet config and fix range (modulo values)
move definition of message_t to multi_usrp.hpp
make multi_usrp.hpp includable from firmware
zpu: rename variables according to lib
zpu: add include directory of lib to cmake
zpu: whitespace