6.2 KiB
Use Kvaser Leaf Light v2
Kernel 3.10
The socketcan drivers sources downloadable from kvaser webpage will not work for kernel 3.10 but a patched version can be used.
Pre reqs
Install kernel headers
sudo yum install kernel-devel
Note: make sure that correct kernel headers are installed for the current kernel, otherwise maybe a update is needed.
Install kvaser driver
Use the correct source
Goto kvasser dir and untar the file: socketcan_kvaser_drivers_1.6.113_patch_asm_3.10.tar.gz
The "socketcan_kvaser_drivers_1.6.113_patch_asm_3.10.tar.gz" contains a patched version of the kvaser socketcan driver version 1.6.113. Functionality not availbale in kernel 3.10 have been removed. For the driver for the Leaf Light v2 this includes basically removing CAN FD support and also a function called "can_change_state()" which is not avilabe in the 3.10 kernel. Kvaser support provided the sources for "can_change_state()" so that have been added to kvaser_usb_leaf.c source.
NOTE: This source will only work for Kvaser Leaf Light v2 usb. It will not work for Kvaser Hydra.
cd kvaser
tar -xvf socketcan_kvaser_drivers_1.6.113_patch_asm_3.10.tar.gz
cd socketcan_kvaser_drivers/
Note: Non patched source downladed from kvaser will not work with kernel 3.10. So use the source in kvaser dir of this repo.
make
Read the README file in kvaser driver. These commands are from that README:
# UNPLUGG KVASER USB DEVICE FIRST
$ sudo make uninstall
$ make
$ sudo make install
Note: You will get some warnings from hydra source but like stated above the hydra hw or driver is NOT supported and should be avoided. So basically this driver ONLY supports the Kvaser Leaf Light v2.
Kernel version >= 4.x
Go to kvaser webpage and download kvaser socket can drivers. Install according to instructions.
Start services and configure interface
First connect the Kvaser Leaf Light v2 usb interface to the controller.
Start services:
$ sudo modprobe can_dev
$ sudo modprobe can
$ sudo modprobe can_raw
#$ sudo modprobe kvaser_usb # not needed, will start as soon as leaf is plugged in
$ sudo ip link set can0 type can bitrate 125000 # 125000 is bitrate (works for pmu905)
$ sudo ip link set up can0
Now you should see the can0 interface, test with "ip addr"
ip addr
...
7: can0: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UNKNOWN group default qlen 10
link/can
...
Check that you have the correct services running (lsmod):
lsmod | grep can
can_raw 17120 0
can 36567 1 can_raw
can_dev 20760 1 kvaser_usb
...
OBSOLETE NOTES BELOW:
1. First test without install of driver and without kvaser leaf connected.
Check support before install of driver:
sudo cat /boot/config-3.10.0-1127.el7.x86_64 | grep KVASER
CONFIG_CAN_KVASER_PCI=m
CONFIG_CAN_KVASER_USB=m
Seems support for KVASER_USB already without installing.
Check ip addr:
ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether c0:3f:d5:66:25:44 brd ff:ff:ff:ff:ff:ff
inet 172.30.2.34/27 brd 172.30.2.63 scope global noprefixroute dynamic eno1
valid_lft 9999557sec preferred_lft 9999557sec
inet6 fe80::c23f:d5ff:fe66:2544/64 scope link noprefixroute
valid_lft forever preferred_lft forever
Seems no can interface (and it's not connected).
2. Connect kvaser leaf:
Check ip addr:
ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether c0:3f:d5:66:25:44 brd ff:ff:ff:ff:ff:ff
inet 172.30.2.34/27 brd 172.30.2.63 scope global noprefixroute dynamic eno1
valid_lft 9999557sec preferred_lft 9999557sec
inet6 fe80::c23f:d5ff:fe66:2544/64 scope link noprefixroute
valid_lft forever preferred_lft forever
Still no can0...
dmesg:[ 543.068096] usb 2-4: new high-speed USB device number 4 using xhci_hcd
[ 543.191792] usb 2-4: New USB device found, idVendor=0bfd, idProduct=0120, bcdDevice= 0.01
[ 543.191803] usb 2-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 543.191809] usb 2-4: Product: Kvaser Leaf Light v2
[ 543.191815] usb 2-4: Manufacturer: Kvaser AB
3. Try start services and conf if
Services
Start services:
$ sudo modprobe can_dev
$ sudo modprobe can
$ sudo modprobe can_raw
$ sudo ip link set can0 type can bitrate 125000
Conclusion: Cannot find can0.. Need to install kvaser driver..
Insall kvaser socketcan 3.10
1 unplug kvaser leaf
2 untar driver source
cd kvaser
tar -xvf socketcan_kvaser_drivers_for_3.10.tar
cd socketcan_kvaser_drivers/
NOTE: The socketcan_kvaser_drivers_for_3.10.tar was recived on request from kvaser support. Their normal socketcan driver will not support kernel 3.10.
3 make
Read the README file in kvaser driver. These commands are from that README:
$ sudo make uninstall
$ make
$ sudo make install
Fails at make...
sudo yum install kernel-devel The kernel sources are at the wrong place.. Sources for wrong kernel!!
Need to update
sudo yum update
Now the kernel sources are at the corerct location. patched version of new socketcan version builds and seems to work with candump and connected pmu905
THIS IS A SIDE NOTE for PEAK usb CAN interface !!!
Check if support for PEAK USB
sudo cat /boot/config-3.10.0-1127.el7.x86_64 | grep PEAK
CONFIG_CAN_PEAK_PCI=m
CONFIG_CAN_PEAK_PCIEC=y
CONFIG_CAN_PEAK_USB=m
CONFIG_SND_FIREWIRE_SPEAKERS=m
# CONFIG_SPEAKUP is not set