Kris Steenhaut wrote to Will Honea on 04-14-1998
KS> Sorry to bump in. But it's easy and even recommendable to 
KS> set both LPT1 & LPT2 at IRQ7. And no problem to have both 
KS> printers at work at the same time. Works like champ here 
KS> [HP 4V & Epson SQ2550]. I don't use the /IRQ switch.
If you don't use the /IRQ switch, it doesn't matter WHAT you set them
to - they are logical and hardware open lines.
We gotta get this straight again. Assume the /IRQ switch is SET
(USED).  My understanding from the last time this subject hit the echo
was that if you had ports 0x378 and 0x278 installed then OS/2 - not
BIOS - would assign one to IRQ 5, the other to IRQ 7 - can't recall
which was which.  I also don't recall what became of 0x3bc, the
default LPT1 and a second or second and third ports.  Anyone archive
this subject this time around?  Seems to be an annual affair - but I
can never remember what, if any, conclusions were reached.
KS>  WH> For my enlightenment, how are you going to use 2 pointing devices?
KS> 
KS> It somehow possible, though in different Dosboxes. I do 
KS> have DesignCad-6  Dos at work in a Dosbox togheter with an 
KS> Acedad digitizer and an Acedad 16-button puck. Other 
KS> Dosboxes and OS2-native have a Logitech Mouseman CordlessPro
KS> 
KS> Both printers are at IRQ 7
But the IRQ is are not used by the print system!
KS> Logitech at IRQ 11 (PS2)
OK, sytem 'pointing device'
KS> Modem at com 3 IRQ 5
KS> Acedad at Com1 IRQ 3
OK, you are running the pad from a DOS device driver in the VDM. 
Makes sense now
KS> Noiseblaster is at IRQ 10
KS> 
KS> I'm usint the original Big Blue's comdrivers, not Sio.
Immaterial in this case.  Main point is regardless of jumpers, your
printers DO NOT USE IRQ 7 - or any other IRQ! 
Will Honea 
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