Re: Exclusive access to hardware for test purpose

[Greg KH]

On Fri, Oct 29, 2004 at 03:05:59AM +0530, Mehulkumar J Patel wrote:
> Hi,
> 
> Is anyone aware of kernel call which allows a test tool developer to have 
> exclusive access to PCI adapter hardware. By exclusive access I mean both
> driver as well as kernel should not touch hardware. 

You need to disconnect the device from any current driver that might be
bound to it.  Then you need to bind to the device to make sure that no
one else binds to it.

> I have been using driver's remove call to simulate the situation as if 
> adapter has been hot plugged out. And once my testing is done I call 
> driver's probe
> call to put adapter back. But this seems to create a problem when somehow 
> kernel calls driver's remove call.

What kind of problem happens?  Any code you can point us at?

thanks,

greg k-h
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