[lug] Re: Xircom RealPort Modem/Redhat 8.0

Douglas Ohlhorst Douglas.Ohlhorst at noaa.gov
Sun Apr 27 13:55:43 MDT 2003

lug-request at lug.boulder.co.us wrote:

>If you are positive the modem is not a winmodem, then it should work 
>(some winmodems work these days too). I'd start by making sure your 
>basic support modules are there...ppp support like the compression 
>module. Serial support for the typical 16550A UART...I think this is 
>just plain old "serial support" in kernel compilation. If you use a 
>stock kernel from RH (or many other distros) you'll have serial support 
>already. [NOTE: It will have a serial UART, and is almost guaranteed to 
>be a 16550 family, even if it is a winmodem]
>You can use lsmod to see what modules are currently loaded. You can also 
>use insmod or rmmod to manually load and unload modules. Keep in mind 
>that sometimes one module depends on another, so order might matter. 
>While doing the insmod, run "tail -f /var/log/messages", and view the 
>log output for clues.
>If you want to view serial port settings, you can run "setserial -a" 
>naming the port, e.g., "setserial -a /dev/ttyS3" would be the COM4 port, 
>telling you all about the current serial settings. I think finding clues 
>by poking around on the system will probably be valuable.
>Also, I don't know how you are testing the modem. I strongly suggest 
>wvdial or minicom (actually, both) to experiment with on the modem.
>I recall this was a hot-plug device, either USB or one of the laptop 
>plugin types, and that it looked like the device was properly detecting 
>plugin and removal, but it didn't know what module to use. Therefore, 
>plug in the hardware, solve the "getting it to work manually" problems 
>first, and then work on the USB or other hotplug stuff...this should be 
>easy once you know what modules are involved and what parameters they take.
>I'm not familiar with hotplug modems, but someone might be able to 
>verify some info about it if they knew what chipset is in it. The 
>manufacturer's website might help here, or just info that came with the 
>D. Stimits, stimits AT attbi DOT com
I'm fairly sure it's not a Winmodem, I've checked it at the Linux/Modem
Compatibility Knowledge Base 

While working on PCMCIA issue, I found the modem listed in the file
/etc/pcmcia/config, I ran through a few things and found out there are a 
of problems. I was trying to figure why the log files would say there are no
modules for this device, so when I went into the /etc/pcmcia/config file 
did a search for the modem, I noticed there was no bind statment for 
this modem
though the Xircom 10/100 w/56k Modem did, so I tried the line from the 
10/100 w/56k Modem without luck. I did find out there was a problem with how
the configuration was written (Redhat Bugzilla). So as of now I am currently
waiting on a response from Redhat to see what the solution is. I've been 
around with different modules that it might be able to work with, but 
had any luck so far. Will continue to see if I can find out the solution.

-= Douglas Ohlhorst

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