Commit 274a517e authored by Rémi Denis-Courmont's avatar Rémi Denis-Courmont Committed by David S. Miller
Browse files

Phonet: resource routing documentation 



Signed-off-by: default avatarRémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 507215f8

Documentation/networking/phonet.txt

+16 −0
Original line number Diff line number Diff line
@@ -112,6 +112,22 @@ However, connect() and getpeername() are not supported, as they did 
not seem useful with Phonet usages (could be added easily).





Resource subscription

---------------------



A Phonet datagram socket can be subscribed to any number of 8-bits

Phonet resources, as follow:



  uint32_t res = 0xXX;

  ioctl(fd, SIOCPNADDRESOURCE, &res);



Subscription is similarly cancelled using the SIOCPNDELRESOURCE I/O

control request, or when the socket is closed.



Note that no more than one socket can be subcribed to any given

resource at a time. If not, ioctl() will return EBUSY.





Phonet Pipe protocol

--------------------