Resource allocation

NTDEV
1

hello all,
i would like to know if i can be granted resource
for i/o ports that
might have been allocated to some other driver.
i am writing a driver for NT 4.0. I was trying to
use second channel of
the timer on an IBM pc. i am using IoAssignResources()
to assign this
resource to my driver, with
IO_RESOURCE_DESCRIPTOR[i].ShareDisposition =
CmResourceShareShared and
CmResourceShareDeviceExclusive have been tried.
what entry does a driver make in the resourcemap
entry in the registry ?
can i directly manipulate it to access hardware
resource assigned to
some other driver?

thanks

Do You Yahoo!?
Yahoo! Tax Center - online filing with TurboTax
http://taxes.yahoo.com/

2

If the resources are shareable yes, and that depends oh who gets them first
and if they share them. If you control the resources then make sure they are
shareable.

–
Gary G. Little
xxxxx@broadstor.com
xxxxx@inland.net

“yog bute” wrote in message news:xxxxx@ntdev…
>
> hello all,
> i would like to know if i can be granted resource
> for i/o ports that
> might have been allocated to some other driver.
> i am writing a driver for NT 4.0. I was trying to
> use second channel of
> the timer on an IBM pc. i am using IoAssignResources()
> to assign this
> resource to my driver, with
> IO_RESOURCE_DESCRIPTOR[i].ShareDisposition =
> CmResourceShareShared and
> CmResourceShareDeviceExclusive have been tried.
> what entry does a driver make in the resourcemap
> entry in the registry ?
> can i directly manipulate it to access hardware
> resource assigned to
> some other driver?
>
> thanks
>
>
>
> __________________________________________________
> Do You Yahoo!?
> Yahoo! Tax Center - online filing with TurboTax
> http://taxes.yahoo.com/
>
>