[yocto] CAN bus protocol error

[wuteng wu]

Hi,

I think i have just found where to do the configure, under the dir:
/poky/meta-atmel/recipes-kernel/linux/files/sama5d3xek, i will try out your
config file, thanks alot.


2014/1/3 wuteng wu <wutengss at gmail.com>

> Hi, could you tell me how to clean and rebuild the kernel?
> I'm newbie to yocto, i have done something like linux-menuconfig when i
> used the build-root, bu which i can config the kernel configuration, but i
> don't know how to do it in yocto, at least i didn't find any reference in
> ref-manual.
>
>
> 2014/1/3 Søren Holm <sgh at sgh.dk>
>
>> Hi Wuteng
>>
>> I've attached a working defconfig for you to look at.
>>
>> But it seems alright what you are doing. Have you tried doing a cleanall
>> to
>> ensure a complete rebuild with your configuration?
>>
>> Fredag den 3. januar 2014 15:11:56 skrev wuteng wu:
>> > Hi,
>> >
>> > I have cross compiled the canutils and installed it into the target
>> rootfs,
>> > but when i tried to test the CAN bus by using the candump command as
>> below:
>> >
>> > candump can0
>> > interface = can0, family = 29, type = 3, proto = 1
>> > *socket: Protocol not supported*
>> >
>> > I got the "socket: Protocol not supported" error msg, i have searched
>> and
>> > found the related solution somewhere said that the 'can-raw protocol
>> > module' need to be included into the kernel. but how should i do that in
>> > yocto ?
>> >
>> > the needed driver has to be loaded by executing the commands:
>> >
>> >
>> >
>> >
>> > *modprobe canmodprobe can-devmodprobe can-raw*
>> >
>> > but only the module can is build-in.
>> >
>> > It might be possible that the can-dev is also necessary.
>> >
>> > anyone have experience to share with me ?
>> >
>>
>> --
>> Søren Holm
>
>
>
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