Re: want to be a hardware developer ?

On Wed, Mar 26, 2003 at 08:14:55AM -0500, Vladimir Dergachev wrote:
> On Wed, 26 Mar 2003, Sven Luther wrote:
> 
> > On Tue, Mar 25, 2003 at 07:54:38PM -0500, Vladimir Dergachev wrote:
> > >      * Port it to Windows. You can use hws_win from
> > >        http://gatos.sf.net/apps.php for direct access to memory mapped
> > >        hardware (this is windows port of hw_script - though PCI id
> > >        scanning is not supported yet).
> >
> > Hey, do you pre chance know of a windows tool to snoop what a particular
> > driver writes to the register aperture ?
> 
> No. This could be possible if another driver were to unmap it and
> thus intercept all writes - but, at the very least, this is a non-trivial

Mmm, i don't know enough about windows programming, never use windows
anyway apart from testing that the hardware really works or such. How
would this work ? you unmap the region, intercept the writes/reads and log
them, and transparently pass them on.

When the region is unmapped, the driver would be writting/reading to an
illegal zone of memory, how do you intercept those ? Using a interrupt
handler or something such ?

> task. A hardware ICE can help - but these things were very expensive last
> time I checked.

Not a solution then.

Friendly,

Sven Luther