[Libdlo] displaylink fb + xorg driver in user space??

[Stefano Panella]

Greg KH wrote:
> On Wed, Sep 16, 2009 at 02:29:35PM +0100, Stefano Panella wrote:
>> Hi,
>>
>> I would like to use my displaylink device just in user space (using libusb)
> 
> Why would this be a requirement?

Because I will need to use a different transport layer (not usb anymore) 
that can be accessed only from a user space interface, so I will need to 
map every usb packet to this particular interface (a kind of character 
device)
> 
>> I would like to transform the fb driver + the xorg driver into a single 
>> user space package but I have not experiences in writing and configuring 
>> xorg drivers...
>>
>> Do you think this is going to be difficult / possible?
> 
> If you don't have experience doing this, then yes, it will be difficult
> :)

I agree, what I would like to do as first milestone is to map the usb 
kernel packets to the libusb ones (no problem for that), the part I am 
not very confident on is the Xorg side of the thing.

Do you have any idea from where could I start to get some information?
I guess maybe it can not be anymore a kind of fb driver...

> 
> Again, why would you want to do this when we have a working solution
> already?  Who is imposing the "no kernel code" rule on you, and why?
> 

This would be only for a demo, any suggestion would be really appreciated.

> thanks,
> 
> greg k-h
> 
> 

Thanks,

Stefano
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Stefano Panella, Software Engineer, Drivers
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