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Old 08-15-2004, 08:38 PM   #1
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Registered: Aug 2004
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Question No Modem is Working

Aslam Alikum Every Body
I m a new user of Linux redhat 9.0
i really dont know much about it and just for learning i install it

Now no modem is working on it.
first i have "intel 536ep ham modem"
i compile its driver and try to run it but i m fail to do this.
then some one ask me to install linux rh9 again and use some other modem.

i again install linux and attach a Lucent WinModem.

the scanModem Utility gives the following results

-------------- System information ------------------------
redhat Red Hat Linux release 9 (Shrike)
on System with processor: i686
supported by kernel: 2.4.20-8
assembled with compiler: 3.2.2

redhat is not yet providing pre-compiled drivers for WinModems

An AC'97 modem codec was not detected

Path to lspci is: /sbin/lspci
--------- lspci scan ----------------
00:00.0 Host bridge: Silicon Integrated Systems [SiS] 650 Host (rev 01)
00:01.0 PCI bridge: Silicon Integrated Systems [SiS] SiS 530 Virtual PCI-to-PCI bridge (AGP)
00:02.0 ISA bridge: Silicon Integrated Systems [SiS] SiS962 [MuTIOL Media IO] (rev 25)
00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE]
00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] SiS7012 PCI Audio Accelerator (rev a0)
00:03.0 USB Controller: Silicon Integrated Systems [SiS] SiS7001 USB Controller (rev 0f)
00:03.1 USB Controller: Silicon Integrated Systems [SiS] SiS7001 USB Controller (rev 0f)
00:03.3 USB Controller: Silicon Integrated Systems [SiS] SiS7002 USB 2.0
00:04.0 Ethernet controller: Silicon Integrated Systems [SiS] SiS900 10/100 Ethernet (rev 91)
00:10.0 Communication controller: Lucent Microelectronics LT WinModem (rev 02)
01:00.0 VGA compatible controller: Silicon Integrated Systems [SiS] SiS650/651/M650/740 PCI/AGP VGA Display Adapter

Modem candidates are at PCI_buses: 00:10.0

Providing detail for device at PCI_bus 00:10.0
with vendor-ID:device-ID
Class 0780: 11c1:044c Communication controller: Lucent Microelectronics LT WinModem (rev 02)
SubSystem 11c1:044c Lucent Microelectronics LT WinModem
Flags: bus master, medium devsel, latency 32
Memory at e5000000 (32-bit, non-prefetchable) [disabled] [size=256]
I/O ports at 8400 [disabled] [size=8]

Internal_test: ./scanModem test 11c1:044c 11c1:044c redhat 2.4.20-8 3 3.2.2

The modem has a supported Lucent/Agere DSP (digital signal processing) chipset
with primary PCI_ID: 11c1:044c
=== Checking 11c1 through chipset providers and modem assemblers ====

The desired installer name is like:
ltmodem-kv-Kernel_FL-LTver--.CPU.rpm explains the versioning.
For your System
Kernel_FL is 2.4.20-8 , the full kernel version displayed by: uname -r
LTver is 8.26a9, the release of the compiler kit
8.26 is the Agere core code designation.
The proccesor type or CPU is: i686 dispayed by: uname -m
used in compiling and assembling driver packages.


The following information blocks just query some ppp support items.
grep ppp /etc/modules.conf

Be sure to read the section about ppp related modules and aliases in ModemData.txt.2
DEVPPP=crw------- 1 root root 108, 0 Jan 30 2003 /dev/ppp
A /dev/modem symbolic link is not present

No devfsd.conf file sound, indicated absense of the devfsd daemon package
for device file system (devfs) symbolic link support.

---- dmesg queries -------
BIOS-e820: 000000000dffc000 - 000000000dfff000 (ACPI data)
BIOS-e820: 000000000dfff000 - 000000000e000000 (ACPI NVS)
apm: BIOS version 1.2 Flags 0x03 (Driver version 1.16)

The ModemDriverCompiling.txt is a MUST READ,
if you are not experienced in configuring kernel-source/
or get "Unresolved symbols" upon driver insertion.


after this i download the requied rpm file and runit. the package is install but the modem is still not worked. i m really very tense now wht this is happennig.
the problem is that
1-when i query modem from kppp it shows that modem is ready and when it gives results all the box are empty no results are in it.
2-when i try to activate the modem from network config it do nothing and show activating message for a long time.
3-when i try to connect the modem is just remain on initializing stage.
4-modem status is also showed disable in the control center info. means some of before its data disable is written.

plz some body tell me how to finish this problem.
Old 08-16-2004, 12:26 AM   #2
Senior Member
Registered: Jun 2004
Posts: 2,553

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Shalom Alekhem

lets try this first (as root)
in the file /etc/modules.conf

put the line:

alias char-major-62 lt_serial

then type:

ln -s /dev/ttyLT0 /dev/modem

if that doesn't work just write back and we can try again
(i'm not so sure about rh9 so it might take a few tries)

Peace and Love
Old 08-16-2004, 12:54 AM   #3
Registered: Oct 2003
Location: Dhaka,Bangladeh
Distribution: Red Hat
Posts: 80

Rep: Reputation: 15
Oalaikum As salam

hope you will get much info about Modem and serial port configuration from following links


Old 08-16-2004, 05:35 AM   #4
LQ Newbie
Registered: Jul 2004
Location: iraq
Distribution: redhat 9
Posts: 12

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Smile no modem is working

Alaikum Al salam Wa rahmatulahi wa barakatuhu
dear essoft ,i have exactly the same problem you have.the only difference is that my internal modem is Motorola sm56 pci modem. I have communicated with many forums over the last two weeks and did mass communications ,but unfortunately no one could help me yet.when i try to insatall the driver which was down loaded from Motorola site i get the following errors:
In terminal session (shell window) I wrote the following command :

rpm --install sm56-06.05.00-1.rh9.i386.rpm

and pressed enter but I always get the same errors which state:

errer: cannot get exclusive lock on /var/lib/rpm/packages

error: cannot open packages index using db3-operation not permitted(1)

error: cannot open packages database in /var/lib/rpm

When I try to install it through KDE and Gnome windows by double click on the program file as we do it usually with MSWIDOWS,

I get a massege which states:

the package “sm56” is currently installed.
I did all the required settings but when I try to connect through KPPP (KDE) and Mozilla(Gnome) I get every time the following masseges according to the type of setting

Setting: /dev/modem the error massege is unable to open the modem

Setting:/dev/ttyS0 or 1 the error massege is the modem does not respond

Setting:/dev/ttyS3 the error massege is the modem is busy

Consequently there is no connection at all.I think the file is not

downloaded correctly. I'm really thinking to buy an external modem so to get rid of these installation problems.

I see that your modem is already recognised as it is seen from the data of scanModem.So you are close to the solution insha allah.

I alredy used ttyLTo but it didn't work.consequently i went to ttyS0 and ttyS1.

Since you are a new comer to Linux (like myself) ,i would like to refer you to a site addressed in which you find a book for a saudi auther in arabic(13.6 mb)about linux red hat 9 which is realy beautiful and highly useful.

i 'll follow your case wishing some good expert could help us.

love and regards

Old 08-16-2004, 08:01 AM   #5
LQ Newbie
Registered: Aug 2004
Posts: 11

Original Poster
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Aslam Alikum Every Body
My problem is still any body expert here to help me.
or all are like me
Old 08-16-2004, 07:06 PM   #6
Senior Member
Registered: Jun 2004
Posts: 2,553

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type for us as root
modprobe lt_modem
modprobe lt_serial

tell us if they return any output

then run
and post the output

and no we are not experts at this either
we generally don't use those crazy wimodems
i'm not saying to give up on this one but yes you can get a
cnet external modem (serial port) for very cheap
and it will work without all this trouble
Old 08-17-2004, 05:35 PM   #7
LQ Newbie
Registered: Jul 2004
Location: iraq
Distribution: redhat 9
Posts: 12

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no modem is working

i guess foo-bar-foo is correct. use external modem and get rid of the problems. however, i like tO ask foo bar foo.does external modem works striat forward with rh9 without any configuration ?
please advise


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