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1 | # |
2 | # Controller Area Network (CAN) network layer core configuration | |
3 | # | |
4 | ||
5 | menuconfig 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. | |
c18ce101 | 18 | |
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19 | if CAN |
20 | ||
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21 | config CAN_RAW |
22 | tristate "Raw CAN Protocol (raw access with CAN-ID filtering)" | |
f66b0301 | 23 | default y |
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24 | ---help--- |
25 | The raw CAN protocol option offers access to the CAN bus via | |
26 | the BSD socket API. You probably want to use the raw socket in | |
27 | most cases where no higher level protocol is being used. The raw | |
28 | socket has several filter options e.g. ID masking / error frames. | |
29 | To receive/send raw CAN messages, use AF_CAN with protocol CAN_RAW. | |
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30 | |
31 | config CAN_BCM | |
32 | tristate "Broadcast Manager CAN Protocol (with content filtering)" | |
f66b0301 | 33 | default y |
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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. | |
ccb29637 | 42 | |
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43 | config CAN_GW |
44 | tristate "CAN Gateway/Router (with netlink configuration)" | |
f66b0301 | 45 | default y |
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46 | ---help--- |
47 | The CAN Gateway/Router is used to route (and modify) CAN frames. | |
48 | It is based on the PF_CAN core infrastructure for msg filtering and | |
49 | msg sending and can optionally modify routed CAN frames on the fly. | |
50 | CAN frames can be routed between CAN network interfaces (one hop). | |
51 | They can be modified with AND/OR/XOR/SET operations as configured | |
52 | by the netlink configuration interface known e.g. from iptables. | |
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53 | |
54 | source "drivers/net/can/Kconfig" | |
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55 | |
56 | endif |