ltmodem.o fixes Re: Winmodem test disk
For the ltmodem.o driver support there have been an evolution of fixes
which you can read in some more detail at
1) Through kernel version 2.2.4
insmod -f ltmodem.o
the 2.2.2 compiled ltmodem.o binary sufficed.
2) This failed within the 2.2.5 kernels. An empirical kluge was to
insmod -f ppp.o (compiled under 2.2.4)
3) Mark Spieth tracked the problem to a change in the tty.h code, and
provided a patch to tty.h allowing use of version matched ppp.o
4) With origins yet to be publically acknowledged, a kit was found
abroad with split of ltmodem.o sources into proprietary and public
components, which could be compiled together under 2.2.n sources
5) Marco Giordani was the first to provide a patch to 2.4.0-testnn
serial.c, supporting a ltmodem.o compile under 2.4.nn
6) Mark Spieth has been making further improvents, which will next week
include a ltmodem5.86d.tar.gz kit supporting ltmodem.o 2.2.nn and
2.4.nn compiles under a single Makefile. Current resources are
available for download at http://walbran.org/sean/linux/stodolsk/
More broadly the situation is generally BAD for Linux support of the
Winmodems polluting the new PCs. If you have skills for tracking down
code problems, an a much needed job is assessing my the Conexant modems
achieve a dialin, but then hang the system as the ppp protocol is
initiated. I'll separately forward you more info on this.
Marco, Mark and I will surely be interested in your 2.2.18 patch.
Please send it to us.
> I recently bought a Tecra 8100 which includes a Lucent linmodem. Lucent released a binary-only driver for this modem by the time of kernel 2.2.12. Unfortunately with later version of the kernel, it didn't work. Yesterday I found the reason why and patched the 2.2.18 kernel source tree.
> I don't know if this info is still useful. If you are interested, I can send te patch.
> On Thu, Jan 04, 2001 at 05:20:14PM +0000, Marvin Stodolsky wrote:
> > Developers,
> > This is a request for some startup assistance. You can read the
> > horror stories a few of us are trying to deal with at:
> > Linmodem-HOWTO http://walbran.org/sean/linux/linmodem-howto-all.html
> > or the archives:
> > http://linmodems.org/cgi-bin/ezmlm-cgi/1
> > Basically most of the new laptops/desktops are coming with cheapie
> > WinModems whose chipsets are hard to identify, and then probably do not
> > have Linux support. It would be very useful to have a Debian style
> > Rescue Disk just to run tests on such modem hardware. Thus Linux folk
> > might be able to determine whether their IntendedNewBoxPC/Laptop has a
> > chance of supporting Dialup under Linux.
> > The following capabilites would be desirable:
> > a) Minimal software to support mimicom, ppp and if space permits
> > wvdail functionality.
> > b) A menu supporting successive trials of candidate modem drivers
> > which could be on a floppy disk, WinSwish or Linux partition
> > c) fdisk -l (list) capability, but all other fdisk action Blocked so
> > that Newbies couldn't be destructive.
> > d) Menu callup of a succession of informative text files.
> > This is not Deep work for someone experienced,and I could eventually
> > work it out myself. But the Help would get out to the NewBies much
> > faster with some help from you Install Disk experts. Once a first
> > ModemTester Disk is made, I'll be able to do updates myself.
> > Incidentally this laptop is currently serving for testing experimental
> > drivers for the Lucent Winmodem being improved by Mark Spieth (Redhat
> > installation) in Australia:
> > koala:/home/marv# uname -r
> > 2.4.0-test12
> > koala:/home/marv# lsmod
> > Module Size Used by
> > ppp_generic 12928 1 (autoclean)
> > ltmodem 364960 1
> > isa-pnp 27888 0 [ltmodem]
> > Your help would be appreciated.
> > MarvS
> > --
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> Please don't send proprietary format documents, I can't (and don't want to) open them.
> Appreciated are open-source formats like .txt or .rtf. Dvi, ps or tex files are welcome.