Hello,

I have a fresh install of FC6 on a Dell Optiplex GX260 (P4 2.4GHz, 512MB RAM, 80GB HDD). I need to install and configure a PCI-based modem (Conextant HCF 56k Data/Fax modem). lspci -v sees and lists the modem at memory address ff6f0000, and at I/O port dcf8.

My problem is that I cannot list the device for configuration in the network manger, I just don't know what to add for settings. It needs:

Modem device: /dev/modem/ is the default setting.
Baud rate: 460800 is the default
Flow control: None is the default, I would assume "Software (XON/XOFF)" to be correct.
Modem volume: Off is the default.

I have never configured a modem on Linux before, please help...

Thx

/F

Check your dmesg or /var/log/messages after boot to see what device is assigned. For example, if this is the only modem or serial port in the system, it will be /dev/ttyS0. For example:

dmesg | grep tty

or

grep tty /var/log/messages*

Hello,

dmesg | grep tty, produced the folowing output; serial8250: ttyS0 at I/O 0c3f8 (irg=4) is a 16550A

Does this signify the presence of a modem?

Thanks

To determine if it's a modem (as opposed to a serial port), you need to see if it responds.

You can do that with a program like minicom (you may need to install it). As root, run 'minicom -s' and go to serial port setup. Set the device to /dev/ttyS0, and Bps/Par/Bits to 9600bps 8N1. Escape and then Save as dfl (default), and Exit.

You can now just run minicom and enter:

at
at
atz

If you get an "OK" response, you have a modem.