diff options
Diffstat (limited to 'net/can/Kconfig')
| -rw-r--r-- | net/can/Kconfig | 41 |
1 files changed, 29 insertions, 12 deletions
diff --git a/net/can/Kconfig b/net/can/Kconfig index a15c0e0d1fc7..e4ccf731a24c 100644 --- a/net/can/Kconfig +++ b/net/can/Kconfig @@ -1,27 +1,30 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Controller Area Network (CAN) network layer core configuration # menuconfig CAN - depends on NET tristate "CAN bus subsystem support" - ---help--- + select CAN_DEV + 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>. + communications protocol. Development of the CAN bus started in + 1983 at Robert Bosch GmbH, and the protocol was officially + released in 1986. The CAN bus was originally mainly for automotive, + but is 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. + specific driver for your controller(s) under the Network device + support section. if CAN config CAN_RAW tristate "Raw CAN Protocol (raw access with CAN-ID filtering)" default y - ---help--- + 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 @@ -31,7 +34,7 @@ config CAN_RAW config CAN_BCM tristate "Broadcast Manager CAN Protocol (with content filtering)" default y - ---help--- + 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 @@ -43,7 +46,7 @@ config CAN_BCM config CAN_GW tristate "CAN Gateway/Router (with netlink configuration)" default y - ---help--- + 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. @@ -51,6 +54,20 @@ config CAN_GW 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" +source "net/can/j1939/Kconfig" + +config CAN_ISOTP + tristate "ISO 15765-2 CAN transport protocol" + help + CAN Transport Protocols offer support for segmented Point-to-Point + communication between CAN nodes via two defined CAN Identifiers. + This protocol driver implements segmented data transfers for CAN CC + (aka Classical CAN, CAN 2.0B) and CAN FD frame types which were + introduced with ISO 15765-2:2016. + As CAN frames can only transport a small amount of data bytes + (max. 8 bytes for CAN CC and max. 64 bytes for CAN FD) this + segmentation is needed to transport longer Protocol Data Units (PDU) + as needed e.g. for vehicle diagnosis (UDS, ISO 14229) or IP-over-CAN + traffic. endif |