Linux Arm

[nicolasr75]

I am so happy to have found this library! I would like to use it with .NET Core on a Raspberry PI. So far I was able to compile it with .NET Core on my Windows machine. As I am not (yet) a Linux expert: Your libnserial debian packages only include x86, x64. Do you think there will be any problems compiling it on an ARM86 (Raspberry PI) with Ubuntu 16.04?

[jcurl]

Have a look in the Dll directory. It uses Cmake for the build system. I have to be honest and say I haven't investigated cross compiling for Cmake, you'll have to research the forums.

You can also get GoogleTest and run the unit tests on the rpi with a loopback cable to see how well it works. Unfortunately I don't have a target to cross compile to so that I can test. Bit if you find any compile errors I will endeavour to help.

[nicolasr75]

Ok, thanks for the tips! I will see how far I get and report back.

[nzain]

If you have cmake on your arm device, you can compile it on the device.

cd dll/serialunix
make
make install

For those interested in cross compilation via buildroot, content of Config.in:

config BR2_PACKAGE_LIBNSERIAL
    bool "libnserial"
    help
        This installs the libnserial library.

and the libnserial.mk file:

LIBNSERIAL_VERSION = v2.x
LIBNSERIAL_SITE = $(call github,jcurl,SerialPortStream,$(LIBNSERIAL_VERSION))
LIBNSERIAL_INSTALL_STAGING = YES
LIBNSERIAL_SUBDIR = "dll/serialunix"

$(eval $(cmake-package))

off-topic: However, it currently doesn't show any ports. Gonna file another ticket.

[nicolasr75]

@nzain Thanks, that makes it a lot easier. For anyone who is a Linux newbie like me I want to add this:

To install cmake do: sudo apt-get install cmake

Copy/Download the SerialPortStream repo and navigate to the serialunix directory as advised by @nzain. Do a cmake . Then do make. make install failed in my case with

Makefile:105: recipe for target 'install' failed
make: *** [install] Error 1

For my project I ignored that error and simply copied the created libnserial.so.1.1 to my project directory and renamed it to libnserial.so.1. The next problem was that I couldn't access the serial port without root privileges. I had to add my user account to the dialout group

sudo adduser <username> dialout

After that I was able to successfully open the serial port on a Raspi with Ubuntu from a .NET Core program. Great!

[jcurl]

No feedback, Closing.