From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM

---
 kernel/net/can/Kconfig |   37 ++++++++++++++++++++++++++++---------
 1 files changed, 28 insertions(+), 9 deletions(-)

diff --git a/kernel/net/can/Kconfig b/kernel/net/can/Kconfig
index a4399be..7c9958d 100644
--- a/kernel/net/can/Kconfig
+++ b/kernel/net/can/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 #
 # Controller Area Network (CAN) network layer core configuration
 #
@@ -5,13 +6,14 @@
 menuconfig CAN
 	depends on NET
 	tristate "CAN bus subsystem support"
-	---help---
+	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>.
+	  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.
@@ -21,7 +23,7 @@
 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 +33,7 @@
 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 +45,7 @@
 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 +53,23 @@
 	  They can be modified with AND/OR/XOR/SET operations as configured
 	  by the netlink configuration interface known e.g. from iptables.
 
+source "net/can/j1939/Kconfig"
+
+config CAN_ISOTP
+	tristate "ISO 15765-2:2016 CAN transport protocol"
+	help
+	  CAN Transport Protocols offer support for segmented Point-to-Point
+	  communication between CAN nodes via two defined CAN Identifiers.
+	  As CAN frames can only transport a small amount of data bytes
+	  (max. 8 bytes for 'classic' CAN 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.
+	  This protocol driver implements data transfers according to
+	  ISO 15765-2:2016 for 'classic' CAN and CAN FD frame types.
+	  If you want to perform automotive vehicle diagnostic services (UDS),
+	  say 'y'.
+
 source "drivers/net/can/Kconfig"
 
 endif

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