Re: kvaser leaf and SocketCAN

[Oliver Hartkopp <socketcan@hartkopp.net>]

On 30.04.2015 08:48, Marc Kleine-Budde wrote:
> On 04/30/2015 08:14 AM, Leo Stan wrote:


>>          close(s);
>> 	
>>          return 0;
>> }
>>
>> I get this flag :
>>
>> can0 at index 3
>> can raw socket read: Network is down
>                         ^^^^^^^^^^^^^^^
> You have to configure your CAN network device first, then bring it into
> an operational state, this means the network is "up".
>
>      ip link set can0 type can bitrate 500000
>      ip link set can0 up
>
> See section "6.5.1 Netlink interface to set/get devices properties"
> http://lxr.free-electrons.com/source/Documentation/networking/can.txt#L990
>

Yes.

Stan: please download

	https://github.com/linux-can/can-utils

compile and install them (make && make install) or with autotools.

And use 'cansend' and 'candump' to check whether its working.

On recent Debian / Ubuntu you can try

	apt-get install can-utils

Programming your own stuff makes sense when you have a working CAN setup.
But when you are fighting on the basic driver side *and* the userspace apps it 
becomes very hard.

There are also code examples in

	https://github.com/linux-can/can-tests

which will help you more than the Wikipedia code sniplet.

And read

	https://www.kernel.org/doc/Documentation/networking/can.txt

which Marc already suggested.

Best regards,
Oliver