Re: can4linux compilation for i.mx25 under 2.6.39

[Martin Kozusky <mkozusky@kkmicro.cz>]

Dne 30.5.2012 13:50, Marc Kleine-Budde napsal(a):
> Hello Martin,
>
> On 05/30/2012 01:39 PM, Martin Kozusky wrote:
>> Hello,
>> I downloaded latest sources of can4linux from svn and I'm trying to
>> compile it for 2.6.39 kernel (i.mx25 driver).
>> I edit cross-imx25 with proper compiler settings etc then ".
>> cross-imx25" and "make"
>>
>> There are some errors like
>> core.c:441:12: error: 'CAN1_BASE_ADDR' undeclared
>> core.c:452:11: error: 'MXC_INT_CAN1' undeclared
>>
>> I can change CAN1_BASE_ADDR to MX25_CAN1_BASE_ADDR and MXC_INT_CAN1 to
>> MX25_INT_CAN1, but there is error
>>
>> imx35.c:18:26: fatal error: mach/mxc_can.h: No such file or directory
>
> It comes from a Karo patch:
>
> http://git.openpandora.org/cgi-bin/gitweb.cgi?p=openembedded.git;a=commitdiff_plain;h=58d6c0ace0c9fe2a3ed9fa845bec9a89583e2fd5
>
>> Does anybody have idea where do I get this file? When I comment this
>> line, compilation continues and stops at
>>
>> imx35.c:113:18: error: dereferencing pointer to incomplete type
>>
>> Does it have anything to do with Karo tx25 board? (which I'm not using)
>> I already have CAN running using SocketCAN, but I also wanted to try
>> can4linux.
>
> Why do you want to use can4linux? Socketcan is the official CAN Stack
> for Linux. Be sure you use the latest kernel, because the flexcan driver
> has some bugs and problems prior to v3.4.
>
> Regards, Marc
>
>

Hello Marc,
I wanted to try if it will be faster than socketcan (which is dropping 
some CAN frames on my HW under heavy load). I need the closest way to 
the controller, and I thought that when can4linux is not using sockets 
layer it could be faster. I also wanted to try LinCAN (which is compared 
to SocketCAN here: 
http://dce.felk.cvut.cz/hanzalek/publications/Hanzalek10_168894.pdf  ) 
but I think it doesn't support Flexcan

Martin