[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>

1 files changed, 11 insertions, 0 deletions

diff --git a/net/can/Kconfig b/net/can/Kconfig
index 8b92790747e5..4718d1f50ab3 100644
--- a/net/can/Kconfig
+++ b/net/can/Kconfig
@@ -15,3 +15,14 @@ menuconfig CAN
 
           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.