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| author | Rémi Denis-Courmont <remi.denis-courmont@nokia.com> | 2010-09-15 14:30:15 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-09-16 06:31:34 +0200 |
| commit | 274a517ec13b3b47047b97a2e7c912138c9806e0 (patch) | |
| tree | 431a3edbf1bab01b67305610c0ae6683ef61ef93 /Documentation/networking | |
| parent | Phonet: list subscribed resources via proc_fs (diff) | |
| download | linux-274a517ec13b3b47047b97a2e7c912138c9806e0.tar.xz linux-274a517ec13b3b47047b97a2e7c912138c9806e0.zip | |
Phonet: resource routing documentation
Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/networking')
| -rw-r--r-- | Documentation/networking/phonet.txt | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/Documentation/networking/phonet.txt b/Documentation/networking/phonet.txt index 6e8ce09f9c73..cf76608a2d35 100644 --- a/Documentation/networking/phonet.txt +++ b/Documentation/networking/phonet.txt @@ -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 -------------------- |