Re: 3c509 Detection problem. Experienced user needs assistance.

[Wintermute <wntrmute@tampabay.rr.com>]

Charles Read wrote:

> I've had similar trouble with a PnP modem, even
> though:
>             a. 'dmesg | more' indicates the kernel finds the serial
>                  device for the modem.
>             b. IRQs are uniquely assigned.
>             c. setserial shows all configuration parameters for
>                 the modem to be sound.
>
> My error is:
>
> # cu --speed 115200 --line /dev/ttyS1
> cu: open (/dev/ttyS1):  Permission denied
> cu: /dev/ttyS1:  Line in use
>
> Please post your solution if you find one!

Well, I've got a few ideas for you.  Right off the bat I am wondering
why you are using /dev/ttyS1 instead of /dev/cua1 (which is one of the
standard call out devices).  As I remember, the /dev/ttySx's are
normally used as call-in devices (whether or not this actually makes a
difference to the system I do not know).

I'm not familiar with the cu program, as I normally use the setserial
program (setserial /dev/cua1 spd_vhi) to change values for the modem.  I
think I once ran into a problem with a PCMCIA modem being tied up
continually, and also as a result causing the mouse to not respond on
the laptop I was using.  I came to find out that I had to explicitly
tell the kernel that the IRQ for the mouse (PS/2) was not to be assigned
to any requesting PCMCIA drivers/devices.  After that both devices
worked fine.

If I get some time, I'll try to research your problem in more detail and
get back to you. (Got your address in my book now.)



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