[linux-help] Re: Modem/internet connection

[Jonathan Hall <jonhall@xxxxxxxxxxxxxxxxxxxxx>]

On Tue, Nov 28, 2000 at 10:17:09PM -0600, rohrer aaron l wrote:
> 
>       I am attempting to configure an internet connection in Linux using
> kppp. My ISP tech-support guy could not get me up and running.
>       My equipment: Asus A7V motherboard, 700 mhz Duron, 128MB RAM,
> USRobotics 56K modem model 2977 without voice (NOT a winmodem).
>       My software: Mandrake 7.1.
> 
>       I got the DNS information from Websurf, and the dial-up number,
> etc., and he confirmed those are correct. When I set the modem as
> /dev/ttyS0 and /dev/ttyS1 and query the modem I get the responses: "Modem
> ready" followed by "Sorry, the modem does not respond". With modem as
> /dev/ttyS2 and /dev/ttyS3 I get "Looking for modem" followed by "Sorry,
> the modem is busy".
>       The BIOS tells me it detects a "simple comm" device using IRQ 5,
> which should be the modem (that line was not there before I put in the
> modem card). I tried using setserial to match the kppp modem device to the
> hardware IRQ, but 1)my efforts either caused Linux to hang during boot or
> had no discernible effect and 2)I've not used setserial before so I didn't
> want to get too bold and maybe screw something up. I'm not sure if I used
> the command properly.
>       The modem does not appear to have any jumpers, switches or
> anything else to adjust. It is not a winmodem--well, I guess I should say
> that I did not ORDER a winmodem (I built the computer) and if it is
> they sent me the wrong one. It is an OEM so I have no manual. It does not
> appear to have a jumper or switch for disabling PnP (something the
> tech-support guy suggested).
>       What do I try now??

The 2977 isn't a winmodem, you're correct... it is PCI, though... (or at
least that's what I remember).  Check /proc/pci... That should tell you what
I/O port and IRQ the modem is using, which will help you determine what COM
port it's on.  It may be on COM5 or higher... (In Windows, the 2977's I've
used have usually installed themselves on COM5).  If that's the case, you'll
need to make a /dev/ttyS4 device (cd /dev; MAKEDEV ttyS4).

Also... you'd be wise to try minicom if kppp doesn't work, just to see if
you can get the modem to respond.


--
"Heavier-than-air flying machines are impossible." -- Lord Kelvin,
president, Royal Society, 1895.
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