Still a few todo according to cppcheck:
[examples/pn53x-tamashell.c:165]:
(style) Found obsolete function 'usleep'. It is recommended that new applications use the 'nanosleep' or 'setitimer' function
[libnfc/buses/uart_posix.c:343]:
(portability) Found non reentrant function 'readdir'. For threadsafe applications it is recommended to use the reentrant replacement function 'readdir_r'
[libnfc/drivers/acr122_pcsc.c:206]:
[libnfc/drivers/acr122_pcsc.c:219]:
[libnfc/drivers/acr122s.c:412]:
[libnfc/drivers/acr122s.c:425]:
[libnfc/drivers/acr122s.c:434]:
[libnfc/drivers/arygon.c:181]:
[libnfc/drivers/arygon.c:194]:
[libnfc/drivers/arygon.c:203]:
[libnfc/drivers/pn532_uart.c:158]:
[libnfc/drivers/pn532_uart.c:171]:
[libnfc/drivers/pn532_uart.c:180]:
(portability) Found non reentrant function 'strtok'. For threadsafe applications it is recommended to use the reentrant replacement function 'strtok_r'