CAN-BUS SockectCAN

[rampinia]

Hello to all

does anyone did programming socket in the class PF_CAN for accessing CAN-BUS in Linux?
On the wiki side I have seen there are not current constant declaration for such network protocoll.

If the pfsocket and others call are just wrapper for standard BSD socket call I think it is enaugh to declare the constant just porting from the standard linux header.

Any info?

Thanks

[marcov]

Yes, the sockets unit are just wrappers. Best is if somebody finds the constants, tests it, and then submits a patch.

[rampinia]

Yes

got PF_CAN = 29 and CAN_RAW = 1 from sys/if.h

already run some tests with PF_CAN = 29 and CAN_RAW = 1 and it works.

I'm working a minimal porting from C header.

[RM]

Hello at all, i am new here...

I try to establish a CAN connection on the raspberry pi (stretch), using free pascal.
I successfully created a raw socket with PF_CAN=29 and CAN_RAW=1.
And now i have to bind the socket to the hardware address, but i don't know how?

Code: Pascal  [Select]

1. class procedure TSysBus.OpenSocket;
2. var
3.   s:Tsocket;
4.   sa:TSockAddr;
5. begin
6.      s:=fpsocket(29, SOCK_RAW, 1);
7.      sa.sa_family:=29;
8.      sa.sa_data[0]:=???;
9.      fpbind(s,@sa,SizeOf(sa));
10.      FpClose(s);
11. end;
12.  

Can somebody give me an example, how i have to go on?
Thanks