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Date:   Sun, 27 Nov 2022 20:02:42 +0100
From:   Christoph Fritz <>
To:     Oliver Hartkopp <>,
        Pavel Pisa <>,
        Richard Weinberger <>,
        Andreas Lauser <>,
        Wolfgang Grandegger <>,
        Marc Kleine-Budde <>,
        "David S . Miller" <>,
        Eric Dumazet <>,
        Jakub Kicinski <>,
        Paolo Abeni <>,
        Jonathan Corbet <>
Subject: [RFC][PATCH 0/2] LIN support for Linux

The intention of this series is to kick off a discussion about how to
support LIN (ISO 17987) [0] in Linux.

This series consist of two patches which are two individual proposals
for adding LIN abstraction into the kernel.

One approach is to add LIN ontop of CANFD:
  [RFC] can: introduce LIN abstraction

The other approach is adding a new type of CAN-socket:
  [RFC] can: Add LIN proto skeleton

These patches are abstracting LIN so that actual device drivers can
make use of it.

For reference, the LIN-ontop-of-CANFD variant already has a device
driver using it (not part of this series). It is a specially built USB
LIN-BUS adapter hardware called hexLIN [1].  Its purpose is mainly to
test, adapt and discuss different LIN APIs for mainline Linux kernel.
But it can already be used productively as a Linux LIN node in
controller (master) and responder (slave) mode. By sysfs, hexLIN
supports different checksum calculations and setting up a

For more info about hexLIN, see link below [1].

We are looking for partners with Linux based LIN projects for funding. 


Christoph Fritz (1):
  [RFC] can: Introduce LIN bus as CANFD abstraction

Richard Weinberger (1):
  [RFC] can: Add LIN proto skeleton

 drivers/net/can/Kconfig          |  10 ++
 drivers/net/can/Makefile         |   1 +
 drivers/net/can/lin.c            | 181 +++++++++++++++++++++++++++
 include/net/lin.h                |  30 +++++
 include/uapi/linux/can.h         |   8 +-
 include/uapi/linux/can/lin.h     |  15 +++
 include/uapi/linux/can/netlink.h |   1 +
 net/can/Kconfig                  |   5 +
 net/can/Makefile                 |   3 +
 net/can/lin.c                    | 207 +++++++++++++++++++++++++++++++
 10 files changed, 460 insertions(+), 1 deletion(-)
 create mode 100644 drivers/net/can/lin.c
 create mode 100644 include/net/lin.h
 create mode 100644 include/uapi/linux/can/lin.h
 create mode 100644 net/can/lin.c


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