On Thu, 7 Apr 1994, Charles Hannum wrote:

> * IRQs can be shared between any number and type of devices.  THIS IS
> STRONGLY DISCOURAGED.  I WILL NOT BE RESPONSIBLE FOR ANY HARDWARE
> DAMAGED BY DOING THIS.  But, there is some hardware which specifically
> allows it, and `I just provide the gun'.  Use at your own risk.  Your
> milage may vary.

I don't think this can be stressed enough.  A good rule of thumb is "if 
you don't have documentation to prove your hardware can share interrupts, 
then DON'T DO IT."  An overwhelming number of ISA adapters available 
simply cannot share interrupts.

Don't assume that because it works under DOS that (a) it's supposed to, 
(b) it will work under any other OS, or (c) it's not damaging your 
hardware in ways that show up later.

--scott

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