Hi Lev,
On 05/02/2020 13.00, Lev R. Oshvang . wrote:
I tried command which is proposed in Dell manual
https://www.dell.com/support/manuals/il/en/ilbsdt1/dell-edge-gateway-3000-series/dell-edge_gateway-3002-install_manual/can-module?guid=guid-b6b7f697-0a5c-4b9c-acfe-9b436ca90bdc&lang=en-us
or i in /dev/ttyACM*; do udevadm info $i | grep -q
03eb_2404_USB_CAN_FD && echo "path:
/dev/$(basename $i)"; done
It prints the device /dev/ttyACM0 is present.
Can I use it as serial CAN device?
Looks weird.
As already answered by Yegor you might have a SLCAN device here.
I am novice to CAN devices. Now I understand that can and can_raw are
only generic drivers and I need real driver.
I wrote to Microchip support, perhaps they have driver for this box.
But still I do not understand why can driver is loaded at boot time I
used to think that only real hardware cause the driver to appear.
16.727375] r8169 0000:02:00.0: can't disable ASPM; OS doesn't have
ASPM control
[ 16.742055] r8169 0000:04:00.0: can't disable ASPM; OS doesn't have
ASPM control
[ 16.824470] peak_usb 1-2:1.0 can0: attached to PCAN-USB channel 0
(device 255)
But this looks like a 'real' PCAN USB adapter
https://www.peak-system.com/PCAN-USB.199.0.html
which you should be able to configure by setting a bitrate and start to
work.
Can you post the output of
ip -det link show can0
and
lsmod | grep can
and
lsmod | grep peak
?
Regards,
Oliver
[ 30.661705] can: controller area network core (rev 20120528 abi 9)
[ 30.678155] can: raw protocol (rev 20120528)
I saw these lines in dmesg and now I thing they apperead because CAN
support was not a module but built-in in kernel configuration.
Regards,
Lev
On Tue, Feb 4, 2020 at 6:08 PM Oliver Hartkopp <socketcan@xxxxxxxxxxxx> wrote:
On 04/02/2020 14.07, Lev R. Oshvang . wrote:
I have with DELL 3002 Edge server
It has can and can_raw drivers loaded at boot time
It does not have /boot/config.txt file
Unfortunately, I do not have kernel sources and kernel config file is
not present in /proc, so I do not know which exactly chip is on b
oard and board specs says only:
(CAN2.0 A/B/FD) 1Mbps (CAN2.0), 5Mbps (CAN-FD).
https://topics-cdn.dell.com/pdf/dell-edge-gateway-3000-series_Specifications2_de-de.pdf
says that there is a
https://www.microchip.com/wwwproducts/en/ATSAME70N19 Cortex-M7 which
handles the CAN FD controller.
The ATSAME70N19 is connected somehow to the Intel Atom-Prozessor E3805.
So I won't assume, that you can access the CAN controller from the Intel
CPU.
I tried to set it up but get the following error
root@5HCF902:~# ip link add dev can0 type can
RTNETLINK answers: Operation not supported
You can not "add" a real CAN interface with "ip link add ..." - this
works only for virtual CANs.
Try
ip -det link show
where some CAN interface (e.g. can0) should be visible, if you have one.
Regards,
Oliver
