[CAN]: Add raw protocol
This patch adds the CAN raw protocol.
Signed-off-by: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
Signed-off-by: Urs Thuermann <urs.thuermann@volkswagen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/can/Kconfig b/net/can/Kconfig
index 8b92790..4718d1f 100644
--- a/net/can/Kconfig
+++ b/net/can/Kconfig
@@ -15,3 +15,14 @@
If you want CAN support you should say Y here and also to the
specific driver for your controller(s) below.
+
+config CAN_RAW
+ tristate "Raw CAN Protocol (raw access with CAN-ID filtering)"
+ depends on CAN
+ default N
+ ---help---
+ The raw CAN protocol option offers access to the CAN bus via
+ the BSD socket API. You probably want to use the raw socket in
+ most cases where no higher level protocol is being used. The raw
+ socket has several filter options e.g. ID masking / error frames.
+ To receive/send raw CAN messages, use AF_CAN with protocol CAN_RAW.