Serial Ports

[Lennart Sorensen]

On Thu, Sep 18, 2008 at 11:21:12PM -0400, Merv Curley wrote:
> I have 2 applications using 2 different serial ports.
> 
> So far, I haven't been able to use them at the same time.  If one is working 
> and using RTS, when I initialize the second [ also using RTS], the first one 
> stops. using DTR/DTS is not an option.
> 
> This may be quite normal,  I'm not that much of a hardware guru to know. Does 
> anyone have any opinions?  I will supply more details about what I am doing 
> if that would help.

It should work.  Now if they are ISA devices (rather than PCI) then
there could be an IRQ sharing issue.  If they share an IRQ then you
might not be able to have both in use at the same time, even though IRQ
sharing should allow it, ISA devices often don't play nice.

For PCI devices it should just work unless the serial devices are really
broken.  I have no issue using both ports on a digi neo dual port PCi
card.

-- 
Len Sorensen
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