> I have small query on using two modem sharing the same IRQ. We
> have two ISA modem installed ( They are on COM2 & COM4) They are
> sharing same IRQ3. Mouse is on COM1, IRQ 4.
My experience is that the above does not work, and I would recommend
moving the modem on COM4 to use either IRQ5 or IRQ2/9 (whichever is
free). That's what I've done here, and it fixed all the problems.
> I am have some problem with that. On one modem I am browsing on
> the internet using PPP by opening a device /dev/cua1. On the
> second one I have opened a device /dev/cua3 and running a
> telephony application.
You should be using ttyS1 and ttyS3 rather than cua1 and cua3 since
the latter are no longer supported.
> Machine is becoming slow or one of the application is hanging
> (modem1 or modem2) or is stopped. However the mouse is working
> fine.
> Can you suggest me at the earliest in solving this.
> How can I effectively use IRQ sharing?
My experience has been that IRQ sharing doesn't work with modems at
all, and very rarely works with ISA bus cards when sharing between
different cards, so in this context, you probably can't.
Best wishes from Riley.
+----------------------------------------------------------------------+
| There is something frustrating about the quality and speed of Linux |
| development, ie., the quality is too high and the speed is too high, |
| in other words, I can implement this XXXX feature, but I bet someone |
| else has already done so and is just about to release their patch. |
+----------------------------------------------------------------------+
* ftp://ftp.MemAlpha.cx/pub/rhw/Linux
* http://www.MemAlpha.cx/kernel.versions.html
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