Linux and Multiport Com cards.

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#54977

From: Maurie Daly
Date: Mon, 11 Aug 1997 00:00

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I am after some general info about how Linux handles multiport Com cards , by 
multiport I mean 8 ports or more.
I have been given a 8 port card which I would like to get going under 
Linux,but it isnt supported , although theres quite a deal of info on how it 
works in a dos environment,and example C drivers for dos.
(The card brand is Labtek and it has 4 uarts on board which allegedly are 2 X 
16550 per uart plus a 8088 like processor plus eprom.)
I guess the sort of thing I need to know is how Linux maps the base addresses 
of each of the uarts on the multiport card and how does it handle the multiple 
IRQs,or is there some standard for sharing a single IRQ amongst multiple 
interrupting devices.If theres any info around which I could be pointed in the 
right direction towards it sure would help.

Maurie Daly

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From: mauried@commslab.gov.au (Maurie Daly)
Subject: Linux and Multiport Com cards.
Date: 1997/08/11
Message-ID: <mauried.88.33EFA17C@commslab.gov.au>
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