Re: kernel notification to user space task

[Greg KH]

On Fri, Mar 29, 2002 at 10:50:13PM +0530, Amol Kumar Lad wrote:
> 
> for example..if my driver detects that interface 'eth0' is coming up, it
> should send a indication to user task saying 'network interface eth0 is up'

If this is not just a hypothetical example, this kind of userspace
notification is already present in the kernel.  /sbin/hotplug gets
called when ever any network interface is brought up or down.  See the
documentation at linux-hotplug.sf.net for more information if you're
curious.

thanks,

greg k-h