| # | |
| # 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.txt>. | |
| 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. | |
| config CAN_BCM | |
| tristate "Broadcast Manager CAN Protocol (with content filtering)" | |
| depends on CAN | |
| default N | |
| ---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. | |
| source "drivers/net/can/Kconfig" |