Re: License related query

Thanks all to clarify my doubts.

Thanks,
Krunal

On 04-03-2016 01:13 AM, Shahbaz Youssefi wrote:
> Just to clarify the situation with the Linux kernel, the reason Linus 
> allows certain binary blobs in the kernel is that GPL puts a 
> restriction on code that is "derived" from GPL code. According to 
> Linus, cases such as the Nvidia driver are allowed to be non-GPL 
> because they were originally written for another operation system, and 
> only ported to Linux. This may be a gray area, but Linus considers 
> such code not derived from Linux and therefore exempt from 
> restrictions of GPL.
>
> If you write an RTAI module in kernel space, your work is clearly 
> derived from both RTAI and Linux, both of which are GPL. You would 
> have no choice then to release your kernel-level code with a 
> GPL-compatible license. User-space is not considered derived code from 
> Linux and RTAI is LGPL in user-space, therefore your user-space code 
> could be proprietary. Also, unless you live in the 70s, you should be 
> aware by now that releasing your code with an open license is 
> generally beneficial to yourself, so it is recommended to make your 
> software open anyway.
>
> On Thu, Mar 3, 2016 at 12:16 PM, Paolo Mantegazza 
> <[email protected] <mailto:[email protected]>> wrote:
>
>     You have to adhere to GPL for kernel space and LGPL for user space
>     applications.
>     I do not care much of what RTAI users do, but if your application
>     is in kernel space it will become, de facto, infected by the
>     kernel being GPL.
>     Nevertheless, to my understanding, Linus Torvaldd allows binary
>     only modules without asking for their code.
>
>     Paolo
>
>     On 03/03/2016 02:41 PM, Krunal Patel wrote:
>
>         Hi,
>
>         I am newbie for RTAI. I would like to use rtai on my ARM7
>         based board for our one of real time application. Before we
>         move further , I have one quotation regarding licensing term
>         for RTAI.
>
>         If we developed our application using RTAI frame work patched
>         on generic Linux for our board , then do we need to make our
>         code open for all or do I need to open only RTAI patched linux
>         code running for our board i.e no application but Linux code
>         with RTAI for ARM 7 ? Is there any commercial license for RTAI ?
>
>
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>

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