I'm stucked at the same place and I cannot fix it. Someone has news on this 
or has already fixed for the early revision of rpi3?


Il giorno domenica 11 settembre 2016 20:06:29 UTC+2, John Erlandsson ha 
scritto:
>
> I will give it a try. I guess I'll go buildroot and xenomai now since I 
> have to build it anyway...
>
>
> On Sunday, September 11, 2016 at 6:22:03 PM UTC+2, John Erlandsson wrote:
>>
>> Hi!
>>
>> I am trying to run machinekit on a raspberry pi 3. Installed raspbian 
>> jessie and installed the rt preempt kernel and machinekit from the repo. 
>> Machinekit runs fine, but fails when I load the hal_gpio component.
>>
>> halcmd: loadrt hal_gpio
>> <stdin>:1: insmod failed, returned -22:
>> rtapi_app_main(hal_gpio): -22 Invalid argument
>>
>> from /var/log/linuxcnc.log:
>> Sep 11 15:07:45 raspberrypi rtapi:0: rtapi_app_main(hal_gpio): -22 
>> Invalid argument
>> Sep 11 15:07:45 raspberrypi msgd:0: hal_lib:1173:rt HAL_GPIO: ERROR: 
>> board revision 4 not supported
>> Sep 11 15:07:45 raspberrypi msgd:0: rtapi_app:1173:user 
>> rtapi_app_main(hal_gpio): -22 Invalid argument
>>
>>
>> How do I fix this? Should I use a different component?
>>
>>
>> //John
>>
>>

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