Error while adding usb ethernet driver

Sebastian Huber sebastian.huber at
Mon Jul 4 05:46:09 UTC 2016

On 03/07/16 06:56, Chris Johns wrote:
> On 30/06/2016 20:22, Deval Shah wrote:
>> On Tue, Jun 28, 2016 at 3:12 AM, Chris Johns <chrisj at
>> <mailto:chrisj at>> wrote:
>>     It might pay for us to add these to an RTEMS header to make porting
>>     simpler.
>> Can't we update our sys/net/if.c and sys/net/if_var.h files accourding
>> to new FreeBSD ?

I don't think its a good idea to selectively update random files of the 
network stack core.

> I do not know. Currently we have a policy of keeping as much at the 
> snapshot point as we can. Sebastian has looked at moving to FreeBSD 10 
> and backed off doing so because it was more work than he could handle 
> due to changes in FreeBSD 10.
> I am not against something like this being merged if the change is 
> localised to just those files, it works, and the existing drivers 
> work. If the change ripples out across the code base then it would be 
> a problem.

Partial updates make it harder and harder to do a major update. I did 
this for complete subsystems like SDCard/MMC/USB, however, doing this 
for individual files is really a problem if want to update. The blocking 
point for an easy update to FreeBSD 10 or 11 are the user space command 
line programs like ifconfig and route. We need a better general approach 
to deal with user space programs. We may have time to do an update later 
this year.

Sebastian Huber, embedded brains GmbH

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