[lug] Newbie tries to make laptop modem work

[John Karns]

On Tue, 27 Nov 2001, Glenn Murray said:

> With predictable results.
>
> I have a Fujitsu LifeBook 985Tx laptop with what Win98 says is a
> Fujitsu LifeBook K56 Flex DVSD LTModem. (The laptop is running Debian
> with a 2.2.19 kernel image.)  Research indicates this is a winmodem
> made by Lucent.  Note also:
>
> /$ cat /proc/pci
> PCI devices found:
> ....
>   Bus  0, device  16, function  0:
>     Communication controller: Lucent (ex-AT&T) Microelectronics L56xMF (rev 0).
>       Medium devsel.  Fast back-to-back capable.  IRQ 9.  Master Capable.  Latency=64.  Min Gnt=252.Max Lat=14.
>       Non-prefetchable 32 bit memory at 0xfedffc00 [0xfedffc00].
>       I/O at 0xf4c8 [0xf4c9].
>       I/O at 0xf800 [0xf801].

I've had good luck with these - I have Dell and Compaq laptops with this
series modem, and both work with Linux.  I've used it with several 2.2
kernels, mostly with 2.2.19 and 2.2.20


> depmod: *** Unresolved symbols in /lib/modules/2.2.19/misc/lt_serial.o

Looks like you may have to edit /etc/modules.conf.  I have a line in that
file as follows:

# lt_drivers: autoloading and insertion parameter usage
alias char-major-62 lt_serial

which was added by a package that I DL'd and installed.  It corresponds to
the following device in /dev which the pkg also set up:

-ttyS14   62, 78 Jun  8 20:18

I can't seem to find the URL, and I've looked through the doc's that were
included in the pkg.  If you would like, I could send it as an attachment
off-list.  The name of the tar file which I have is 'ltmodem-5.99b.tgz'
and was dated May 2001.  It also includes some scripts to help
troubleshoot problems.

----------------------------------------------------------------
John Karns                                        jkarns at csd.net