[ale] PCI Modems

[Mike Kachline]

On Mon, 17 Jul 2000 chrisf at computone.com wrote:

> 
> Everyone,
> 
> I purchased a 56K PCI modem to use under RH 6.2 but the kernel
> does not see this as a hardware device.  This is not a software
> modem it is a hardware modem.  I've used ISA modems before and
> the kernel assigns a tty device to those modems.  Is there something
> I am missing that I need to do to get this one to work?  It is
> an off-brand that I picked up for $20.  
<snip>
	Chris,

	I'll prepend my next statements with the assumption that your PCI
modem is *not* a winmodem. If you did buy a winmodem, then, I can't help
you.

	If your PCI modem is *not* a win-modem, then you need to basically
"tell" linux which IO/IRQ to use for which ttyS[x] port. To do this, use
"setserial". The basic sequence is to "cat /proc/pci" and look for a
"serial device". Take note of the IRQ and the IO port which your modems
uses. Next, do a "setserial /dev/ttywhatever irq x port y uart
16550", where "x" and "y" were the values which you picked out of
/proc/pci.
	If my memory is correct, from that point on, you can use the PCI
modem like any other modem, via it's "/dev/ttySwhatever" device. Also,
RTFM on setserial(8), as there are other options (like "spd_vhi") which
you will find handy for "tweaking" your modem settings (In particular,
look at the "spd_hi, spd_vhi" options).


				- Mike
======================================
Michael Kachline 
mailto:kachline at brightstar.gt.ed.net
http://brightstar.gt.ed.net/kachline
======================================

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