Messages in this thread |  | | From | "Magnus Hiie" <> | Date | Mon, 5 Aug 1996 13:17:49 +0200 | Subject | serial ports |
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Hi!
I'm sorry, if this is a newbie question, but:
Why is it impossible for multiple (standard) serial ports (ttyS?) to use the same IRQs?
If the ports are used one by one (a process opens a port, does smth with it, closes it), they can be on the same IRQ. But this can't be done using these IRQ sharing ports at the same time (overrun errors).
If I remember correctly, I once did smth like this when I used DOS.
Is it some hardware limitation or what? When an interrupt occurs, serial driver could look up which port it was meant for, couldn't it?
********************************* Magnus Hiie Computer Manager Eesti Ekspress E-mail: mgn@ekspress.ee Tel: +372 6408046 GSM: +372 56 51146
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