RTEMS-libbsd copyright question

[Sichen Zhao]

Ok, so i think most of my ported file shouldn't add copyright.
But some file in the rtemsbsd folder , i think i modified some new 
code.  The link is below:
https://github.com/hahchenchen/rtems-libbsd/blob/usb2.0/rtemsbsd/include/bsp/nexus-devices.h#L49

https://github.com/hahchenchen/rtems-libbsd/blob/usb2.0/rtemsbsd/include/machine/rtems-bsd-nexus-bus.h#L260

Best Regards
Sichen Zhao
> Hello Sichen Zhao,
>
> Copyright applies to any new code that you personally author. The
> conventional wisdom is that if you make 3 or more lines of new code in
> a file, then you have expressed some original thoughts/ideas in the
> code and a copyright existss so you can/should add your name. Changing
> existing code does not necessarily give you a copyright on it, and
> neither do mechanical changes i.e., code changes that do not express a
> thought. This is a fairly large grey area.
>
> Gedare
>
>
> On Mon, Jun 19, 2017 at 2:57 AM, Sichen Zhao <zsc19940506 at outlook.com> wrote:
>> Hi all,
>>
>> I have a question about copyright in rtems-libbsd: i ported some usb driver files from FreeBSD, i modified somewhere in these files to suit with rtems-libbsd. Should i add my copyright in these file?
>> Besides, I also modified some files in the rtemsbsd folder,. Should i add my copyright in these file?
>>
>> Best Regards
>> Sichen Zhao
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