[ltp] Mwave/ACP modem

[Tino Keitel]

On Sunday 14 January 2001 21:00, you wrote:
> Just an observation ...
>
> Start mwavem support program for modem at IRQs 3 and 10.
>   Mwave/ACP modem works.
> Load Xircom PCMCIA modem.  PCMCIA card services gives it IRQ3.
>   MWave/ACP modem no longer works.  The mwavem program exits
>   with the message "ERROR" and the driver reports "Can't grab IRQ".
>   PCMCIA modem does work, however.
> Unload Xircom PCMCIA modem.  (cardctl eject will do.)
>   PCMCIA modem no longer works, of course.
>   But Mwave/ACP modem works again.
>
> The Mwave/ACP modem driver seems to be pretty well behaved
> when it comes to resource sharing.
>
> Thomas

You shouldn't call this "sharing", because I think that the mware driver 
needs the IRQ only if the serial port is open. If the port isn't used, any 
other device can use IRQ 3. I had that problem with some other hardware that 
used the IRQ of the serial Port (IRQ 3) of my desktop machine.

Tino
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