1# 2# Controller Area Network (CAN) network layer core configuration 3# 4 5menuconfig CAN 6 depends on NET 7 tristate "CAN bus subsystem support" 8 ---help--- 9 Controller Area Network (CAN) is a slow (up to 1Mbit/s) serial 10 communications protocol which was developed by Bosch in 11 1991, mainly for automotive, but now widely used in marine 12 (NMEA2000), industrial, and medical applications. 13 More information on the CAN network protocol family PF_CAN 14 is contained in <Documentation/networking/can.txt>. 15 16 If you want CAN support you should say Y here and also to the 17 specific driver for your controller(s) below. 18 19config CAN_RAW 20 tristate "Raw CAN Protocol (raw access with CAN-ID filtering)" 21 depends on CAN 22 default N 23 ---help--- 24 The raw CAN protocol option offers access to the CAN bus via 25 the BSD socket API. You probably want to use the raw socket in 26 most cases where no higher level protocol is being used. The raw 27 socket has several filter options e.g. ID masking / error frames. 28 To receive/send raw CAN messages, use AF_CAN with protocol CAN_RAW. 29 30config CAN_BCM 31 tristate "Broadcast Manager CAN Protocol (with content filtering)" 32 depends on CAN 33 default N 34 ---help--- 35 The Broadcast Manager offers content filtering, timeout monitoring, 36 sending of RTR frames, and cyclic CAN messages without permanent user 37 interaction. The BCM can be 'programmed' via the BSD socket API and 38 informs you on demand e.g. only on content updates / timeouts. 39 You probably want to use the bcm socket in most cases where cyclic 40 CAN messages are used on the bus (e.g. in automotive environments). 41 To use the Broadcast Manager, use AF_CAN with protocol CAN_BCM. 42 43config CAN_GW 44 tristate "CAN Gateway/Router (with netlink configuration)" 45 depends on CAN 46 default N 47 ---help--- 48 The CAN Gateway/Router is used to route (and modify) CAN frames. 49 It is based on the PF_CAN core infrastructure for msg filtering and 50 msg sending and can optionally modify routed CAN frames on the fly. 51 CAN frames can be routed between CAN network interfaces (one hop). 52 They can be modified with AND/OR/XOR/SET operations as configured 53 by the netlink configuration interface known e.g. from iptables. 54 55source "drivers/net/can/Kconfig" 56