Phonet: resource routing documentation (274a517e) · Commits · e / devices / android_kernel_xiaomi_markw

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