Re: CAN State Information

[Wolfgang Grandegger <wg-5Yr1BZd7O62+XT7JhA+gdA@public.gmane.org>]

Hello,

On 12/06/2011 02:56 PM, kime-Z4QKGCRq86k@public.gmane.org wrote:
> Hello,
> 
> I am using socketcan with a combination of 3 passive plx cards (1 dual channel and 2 single channel) on kernel 3.0.0-13.  I have the libsocketcan-0.0.8 installed as well. I can use all 4 CAN channels but for some reason I can only use can_get_state() with the two single cards and the dual card returns -1 for both channels.  I have attempted another setup this time with just the two single cards and when I use the can_get_state() I am able to only return the state on 1 of them. Then I attempted putting in the dual card alone and the same result, one channel works the other does not. 

Hm, if "ip -d -s link" lists the state correctly, then it's most likely
a problem with libsocketcan. Anyway, for what purpose would you like to
use can_get_state()? It's not forseen for frequent polling of the CAN
error state. Please use error messages instead.

> I would appreciate any advice, this seems like a strange problem to me. 

What Socket-CAN driver are you using for the IXXAT cards? There is still
no support in mainline Linux, IIRC. Maybe there is some mismatch with
the header files.

Hope it helps.

Wolfgang.

PS: I added our new mailing list linux-can-u79uwXL29TY76Z2rM5mHXA@public.gmane.org to the CC.
    BerliOS will be closed end of the year.


> Mit freundlichen Grüssen / Yours sincerely,
> 
> James Kime
> Entwicklung / Development
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