Messages in this thread | | | Date | Wed, 24 Dec 2003 13:12:23 -0800 | From | "Randy.Dunlap" <> | Subject | Re: Safe ISA port probing? |
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On Wed, 24 Dec 2003 14:33:54 -0600 (CST) Ben Srour <srour@cs.wisc.edu> wrote:
| Hello, | | What is the safest way to go about probing for non-pnp ISA devices on a | system?
To be very safe, use a parameter and don't do probing, except to verify that the device is where you have been told it is.
| Is the only solution to start at a base address and increment until you | find something interesting? Won't this put devices along the way in an | unsafe state?
It could.
| Any advice/suggestions would be appreciated,
There's not a method that's always safe AFAIK.
It's better to use reads instead of writes if possible. It's better to begin at the least-used addresses of other known devices as much as possible (but you know that).
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