[ILUG] modem hell!

[Kenn Humborg]

On Wed, Oct 27, 1999 at 12:49:44AM +0100, John Gilbert wrote:
> 
> 
> >Let's see the output from the pnpdump command.  That might give
> >enough info to configure the modem with isapnp.
> 
> granted.... i have to go read up on it now :( anyway, output available @
> http://www.geocities.com/magooman/pnpdump.txt - ) so, anyone wanna shed
> some light on this & how it helps me? (or point me in a somewhat right
> direction..) thanks

If you have only one real serial port on your machine, then
uncomment these lines:

#       Start dependent functions: priority acceptable
#       Logical device decodes 16 bit IO address lines
#             Minimum IO base address 0x02f8
#             Maximum IO base address 0x02f8
#             IO base alignment 8 bytes
#             Number of IO addresses required: 8
# (IO 0 (SIZE 8) (BASE 0x02f8) (CHECK))
#       IRQ 3.
#             High true, level sensitive interrupt
# (INT 0 (IRQ 3 (MODE +L)))

(This is the second section in the multiple-choice stuff.
This will configure the modem to be COM2.)
If you have 2 real ports, uncomment this section:

#       Start dependent functions: priority acceptable
#       Logical device decodes 16 bit IO address lines
#             Minimum IO base address 0x02e8
#             Maximum IO base address 0x02e8
#             IO base alignment 8 bytes
#             Number of IO addresses required: 8
# (IO 0 (SIZE 8) (BASE 0x02e8) (CHECK))
#       IRQ 4, 5, 7, 9, 10, 11, 12 or 15.
#             High true, level sensitive interrupt
# (INT 0 (IRQ 4 (MODE +L)))

In this case, you will probably need to choose an IRQ 
that's not already in use.  IRQ4 will be already used
for COM1.  This will configure it to be COM3

Then run this file through isapnp:

# isapnp isapnp.conf

If you used COM2, then all should be fine now.  If you
used COM3, you will need to tell the kernel which IRQ
to use:

# setserial /dev/ttyS2 irq X

If all this works, then add the isapnp (and setserial
if necessary) commands to /etc/rc.d/rc.local.

Later,
Kenn