diff options
| author | Oliver Hartkopp <socketcan@hartkopp.net> | 2010-10-19 09:32:04 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-10-21 04:27:03 -0700 |
| commit | 1e55659ce6ddb5247cee0b1f720d77a799902b85 (patch) | |
| tree | 335e43324d5ad5e0979fb30e333cb1a4e1a47085 /README | |
| parent | 32a875adcdcf5f470bf967250cfd01722e23844f (diff) | |
| download | linux-1e55659ce6ddb5247cee0b1f720d77a799902b85.tar.gz linux-1e55659ce6ddb5247cee0b1f720d77a799902b85.tar.bz2 linux-1e55659ce6ddb5247cee0b1f720d77a799902b85.zip | |
can-raw: add msg_flags to distinguish local traffic
CAN has no addressing scheme. It is currently impossible for userspace
to tell is a received CAN frame comes from another process on the local
host, or from a remote CAN device.
This patch add support for userspace applications to distinguish between
'own', 'local' and 'remote' CAN traffic. The distinction is made by returning
flags in msg->msg_flags in the call to recvmsg().
The added documentation explains the introduced flags.
Signed-off-by: Kurt Van Dijck <kurt.van.dijck@eia.be>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'README')
0 files changed, 0 insertions, 0 deletions