Download your favorite Linux distribution at LQ ISO.
Go Back > Forums > Linux Forums > Linux - Hardware
User Name
Linux - Hardware This forum is for Hardware issues.
Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?


  Search this Thread
Old 11-11-2004, 11:58 AM   #1
LQ Newbie
Registered: Nov 2004
Distribution: Libranet 2.8.1
Posts: 24

Rep: Reputation: 15
Libranet can't see US Robotics 56k modem

I've just installed Libranet 2.7 Classic and am having problems with my modem, a US Robotics 56k faxmodem.

Basically Linux doesn't appear to be seeing the modem at all. I've checked (using dmesg) that I'm pointing to the right serial port, and used echo "ATDT/n" > /dev/modem" as suggested to "ping" the modem. No response at all.

Ditto when I use "pon provider".

Not sure what the precise model number is, though my wife just reported from home that it has the following numbers on it: 12VCLAGA17B7 and 71-245-630-01. I tried to post a link to the relevant page on USR's site but got blocked as a new LQ user. Let's try this instead (you'll need to cut and paste it into your address bar):

I understand that there may be a need for a Linux-specific driver for this modem, but I can't find any information about this on USR's site (see link above). Can anyone suggest where I might find an appropriate (and preferably free!) driver?


Old 11-11-2004, 05:02 PM   #2
Senior Member
Registered: Jan 2003
Location: Portland, OR USA
Distribution: Slackware, SLAX, Gentoo, RH/Fedora
Posts: 1,024

Rep: Reputation: 45
External modems (thats what a 5630 is if I followed that link correctly) are a cakewalk to set up, just make sure the com port you plugged it into is enabled in the BIOS, I've forgotten that before

Oh and there are no 'drivers' needed since your modem isn't one of those gimpy software modems where they leave chips out and make up for it with software, all it needs to do is talk to the com port it's plugged into which Linux knows how to do.

Type 'ls -l /dev/modem' to see where /dev/modem actually points to. External modems usually go into one of the motherboard's com ports so it should be ttyS0 or ttyS1. You can also try your echo command to /dev/ttyS0 or /dev/ttyS1 instead of /dev/modem, one of those should get lights to flash on the modem at least.


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
USB US Robotics 56k external modem mardanian Linux - Hardware 7 09-20-2006 05:21 PM
Need help getting a US Robotics 56k external modem to work Earl Parker II Linux - Hardware 5 12-11-2005 11:48 AM
U.S. Robotics 56k modem with linux gr3ygh0s1 Linux - Networking 2 07-25-2005 11:50 PM
u.s.robotics 56k modem not working rh7.2 dondon Linux - Hardware 8 01-05-2004 11:33 AM
56K US Robotics modem config on RH Linux 8.0 PC joe pac bro Linux - Distributions 3 04-30-2003 05:10 AM > Forums > Linux Forums > Linux - Hardware

All times are GMT -5. The time now is 09:22 AM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration