Added NFCIP support (NDEF) about libnfc HOT 7 CLOSED

Updated patch. Somewhat cleaner now.

Hey,

Thanks for patches but could you add doxygen comments to document API ?
What does DEP means ?
Does it remain issues with libnfc-nfcip-reworked.patch ?

> Thanks for patches but could you add doxygen comments to document API ?

I will look into this soon :) Is there already a doxygen configuration file 
available
somewhere? 

> What does DEP means ?

Data Exchange Protocol. 

> Does it remain issues with libnfc-nfcip-reworked.patch ?

Yeah well. It is still a problem, nfc_target_send_dep_bytes and 
nfc_target_send_bytes
are basically the same (also true for receive), only a different PN53x command 
is
used. But in the send method there is no way to know what PN53x command to use. 
This
could of course be added to the tag_info struct, but that does not get passed 
to the
send/receive functions.

Any ideas on this? I was thinking about creating a send_differentiated / send  
and
send_dep function where they both call send_differentiated with a parameter
specifying which command is required. Aaarrgh C! :)

There are no Doxygen configuration file yet : use a default one.

I'll look at your issue regarding send/receive command is NFCIP mode next week.

Thanks again for this great contribution.

Now with comments in libnfc.h 

Applied as experimental feature in r89, thanks !