Linux driver compiled with NETDEV_SUPPORT, but no can0 dev

[Hartmut Hoss]

Hi,
after compiling and installing the linux driver, pcanview runs on Ubuntu, but I can't use my PCAN-USB-adapter with can-utils/socketcan (no device can0). Compiling with "make -C driver NET=NETDEV_SUPPORT" doesn't help: pcanview runs, but there is still no device can0 or vcan. For some reason, the PCAN driver for Linux works, buts fails to install the the netdev interface.
Does anyone have an idea what's missing? Please find more details in the attached logfile.
Many thanks and best regards,
Hartmut Hoss

[Hartmut Hoss]

P.S.: some additional information:
Running "make -C driver NET=NETDEV_SUPPORT" in folder "peak-linux-driver-8.7.0" works, but "make NET=NETDEV_SUPPORT" fails with error message "src/pcan-settings.c:53:10: fatal error: popt.h: No such file or directory".
Running "sudo make -C driver install" works, but "sudo make install" fails with the following message:

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Info: /lib/modules/4.15.0-45-generic/misc exists.
Info: Left current 'pcan'-entry in /etc/modprobe.d/pcan.conf untouched.
Info: Copied 45-pcan.rules to /etc/udev/rules.d.
Info: mainline drivers removed and blacklisted in
      /etc/modprobe.d/blacklist-peak.conf
make[1]: Leaving directory '/m/peak_systems/peak-linux-driver-8.7.0/driver'
make[1]: Entering directory '/m/peak_systems/peak-linux-driver-8.7.0/lib'
mkdir -p /usr/lib
cp -d lib/* /usr/lib
if [ -d lib32 ]; then \
	mkdir -p /usr/lib32; \
	cp -d lib32/* /usr/lib32; \
fi
mkdir -p /usr/include
chmod 644 libpcan.h libpcanfd.h
cp libpcan.h libpcanfd.h /usr/include
/sbin/ldconfig
make[1]: Leaving directory '/m/peak_systems/peak-linux-driver-8.7.0/lib'
make[1]: Entering directory '/m/peak_systems/peak-linux-driver-8.7.0/test'
cp receivetest transmitest bitratetest filtertest pcanfdtst pcan-settings /usr/local/bin
cp: cannot stat 'pcan-settings': No such file or directory
Makefile:165: recipe for target 'install' failed
make[1]: *** [install] Error 1
make[1]: Leaving directory '/m/peak_systems/peak-linux-driver-8.7.0/test'
Makefile:92: recipe for target 'install' failed
make: *** [install] Error 2

I guess: "make -C driver NET=NETDEV_SUPPORT" (or "cd driver ; make NET=NETDEV_SUPPORT") builds the chardev drivers only. Building the test target with "make NET=NETDEV_SUPPORT" is required, but fails with "

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src/pcan-settings.c:53:10: fatal error: popt.h: No such file or directory

Maybe there's just an include path missing in the makefile?

[Hartmut Hoss]

Coming closer The missing popt.h can be installed by

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sudo apt-get install libelf-dev
sudo apt-get install libpopt-dev

After that, "make NET=NETDEV_SUPPORT" and "sudo make install" work without any errors. And after

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sudo modprobe pcan
sudo modprobe can
sudo modprobe vcan
sudo modprobe slcan
sudo ip link set can0 type can
sudo ip link set can0 up type can bitrate 125000

there is a "can0" link:

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ip -details link show can0
3: can0: <NOARP,UP,LOWER_UP> mtu 16 qdisc fq_codel state UNKNOWN mode DEFAULT group default qlen 10
    link/can  promiscuity 0 
    can state ERROR-ACTIVE restart-ms 0 
	  bitrate 125000 sample-point 0.875 
	  tq 500 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1
	  pcan: tseg1 1..16 tseg2 1..8 sjw 1..4 brp 1..64 brp-inc 1
	  clock 8000000numtxqueues 1 numrxqueues 1 gso_max_size 65536 gso_max_segs 65535 

Time to proceed with ros_canopen using the socketcan-interface
Maybe a small hint in the manual PCAN-Driver-Linux_UserMan_eng.pdf would be nice, something like: "run make NET=NETDEV_SUPPORT and when you encounter a missing popt.h error, just install popt with sudo apt-get install libpopt-dev and repeat." Just in case