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- #
- # Controller Area Network (CAN) network layer core configuration
- #
- menuconfig CAN
- depends on NET
- tristate "CAN bus subsystem support"
- ---help---
- Controller Area Network (CAN) is a slow (up to 1Mbit/s) serial
- communications protocol which was developed by Bosch in
- 1991, mainly for automotive, but now widely used in marine
- (NMEA2000), industrial, and medical applications.
- More information on the CAN network protocol family PF_CAN
- is contained in <Documentation/networking/can.rst>.
- If you want CAN support you should say Y here and also to the
- specific driver for your controller(s) below.
- if CAN
- config CAN_RAW
- tristate "Raw CAN Protocol (raw access with CAN-ID filtering)"
- default y
- ---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.
- config CAN_BCM
- tristate "Broadcast Manager CAN Protocol (with content filtering)"
- default y
- ---help---
- The Broadcast Manager offers content filtering, timeout monitoring,
- sending of RTR frames, and cyclic CAN messages without permanent user
- interaction. The BCM can be 'programmed' via the BSD socket API and
- informs you on demand e.g. only on content updates / timeouts.
- You probably want to use the bcm socket in most cases where cyclic
- CAN messages are used on the bus (e.g. in automotive environments).
- To use the Broadcast Manager, use AF_CAN with protocol CAN_BCM.
- config CAN_GW
- tristate "CAN Gateway/Router (with netlink configuration)"
- default y
- ---help---
- The CAN Gateway/Router is used to route (and modify) CAN frames.
- It is based on the PF_CAN core infrastructure for msg filtering and
- msg sending and can optionally modify routed CAN frames on the fly.
- CAN frames can be routed between CAN network interfaces (one hop).
- They can be modified with AND/OR/XOR/SET operations as configured
- by the netlink configuration interface known e.g. from iptables.
- source "drivers/net/can/Kconfig"
- endif
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