Re: How to exchange data between Kernel & User Space

[Kirill Ratkin <kratkin@yahoo.com>]

Use mmap and see exmaple here:
http://www.kernelnewbies.org/code/mmap/

Regards,

--- Matti Aarnio <matti.aarnio@zmailer.org> wrote:
> On Wed, Sep 26, 2001 at 09:21:25AM +0530, Gangadhar
> Uppala wrote:
> > Hi All,
> >     Here we are in need of a design decision . The
> problem is as follows:
> > 
> > We are writing device driver for network adapter,
> as part of this we need to
> > exchange some information between user and
> kernel(driver) and vice versa. As
> > i know this can be implemented using IOCTLs.
> Please suggest an alternative
> > approach for this.
> 
>    Why the system supplied standard set of ioctls
> isn't enough ?
>    Or is not extendible ?
> 
>    Something very special you need to do ?
>    Is high bandwidth needed at this communication ?
> 
>    For normal network traffic the communication goes
> via kernel internal
>    packet reception path, but if you want to do
> something totally different,
>    suggesting alternates needs an idea of what you
> are aiming at.
> 
> > Please keep a copy for me, because i am not
> subscriber to this list.
> > 
> > Thanks
> > Gangadhar
> 
> /Matti Aarnio
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