Hi, Brett: I have a Lucent mini-PCI Win in my IBM Thinkpad T20. It has been working just fine, but I had to compile a special driver for it. Here's the info from the file CREDITS in the distribution of ltmodem-5.78e.tar.gz which I've been using: This history is largely excerpted from the Linmodem HOWTO at http://walbran.org/sean/linux/ and exchanges of discuss at linmodems.org participants, with Archive access at http://www.linmodems.org The first port of Lucent chip support to Linux was done by Eric Bentley, as requested by Red Hat, to provide support under kernel 2.2.12 kernels. This was ltmodem.o driver, version 5.68.2.2.12. An interesting commentary on support issues is available at http://lwn.net/1999/1209/a/lucent.html This binary sufficed into kernel verions 2.2.15, but required forced (-f) insertion: insmod -f ltmodem to bypass the module-kernel version mis-matches. Mark Spieth provided a fixscript tool that masks such mis-matches (available at http://www.test.dclabs.com.au/linmodem/fixscript) so that there sufficed a simpler: insmod ltmodem Source code changes within the 2.2.15 series faulted use of the ltmodem.o binary. While dail up and login could be achieved, the ppp protocol could no be established. There was frequently a system crash when it was attempted. Christoph Hebeisen experimented and discovered a bypass. Provided that ppp.o compiled from 2.2.14 sources was used, the ppp protocol could be established: insmod ltmodem insmod slhc insmod -f ppp (compiled under 2.2.14) This trick served into kernel versions 2.2.16, though with increasing flakiness as kernel versions increased. David Hinds fixed a bug, which caused ltmodem.o to grab other serial ports. These tricks also proved to be effective for modems with a ESS chipset, as worked through by Willie Green. To more efficiently convey these technicalites to the increasing population afflicted with winmodems, Sean Walbran originated the Linmodem HOWTO, with contributions from Marv Stodolsky. Meanwhile, Mark Spieth searched the source code for the change breaking ppp protocol support. It was recognized within include/linux/tty.h of the 2.2.16 source code tree. Mark provided a fix/patch. Marv Stodolsky reported a few hours later, that the same fix was effective under 2.2.17. With these tty.h fixes, kernel version matched ppp.o could again be used. Reliable ppp service enused, but with worries about functionality under the maturing 2.4.nn kernel series. Then there was an exciting week, coinciding with the Thanksgiving holiday in the USA. Jean Gomes reported the presence of a compiler kit at http://www.lectron.com.tw/Linux.htm. It was provided by Lucent/Agere for major customeres, initially suited for service with the 2.2.14 kernels. It includes a proprietary binary, ltmdmobj.o , and open source components. These components can be linked and compiled with kernel sources, producing ltmodem.o driver 5.78. This ended the Dark Ages of newer kernels and version mis-matched ltmodem.o. Within a day Christoph Hebeisen and Mark Spieth improved the Makefile to support compiles with sources upto 2.2.18. A day later, Marco Giordani lofted us into the realm of maturing kernel 2.4 sources, providing patches enabling compiles with kernel-2.4.0-test11 sources. Mark Spieth has and is continuing successive improvents. They are available as ltmodem5.78*.tar.gz kits for public download at http://walbran.org/sean/linux/stodolsk/. During December, 2000, Jacques Goldberg was trying to implement service of ltmodem.o on a new PC. He found that it had a default PNP (Plug and Play) setting "hidden" in the BIOS Advanced menu. As soon as a change from PNP to OTHER was made, good ltmodem.o service enused. Many other Users have since been helped by recognition of this problem. It is expected/hoped that it will be largely obviated with the transition to PNP competent 2.4.0 kernels, but some problems have been reported to the List. A problem was encountered with the Xircom modems included in Toshiba Satellite laptops. They appeared to have the MARS chip characteristic of the Lucent winmodems, but did not support insertion of ltmodem.o. With advice from Javier Nigro, Andreas Plesch changed a PNP device-ID code within ltmodem.o, and full functionality ensued. Vladimir Chernyshov identified and fixed a problem under 2.4 kernels, causing ltmodem.o to raise a serial.o driver with a shared IRQ, This fix brought substantial improvements of performance under 2.4.nn kernels. Marv Stodolsky reported that while the modem could be accessed through several IRQs, most did not support dial tone acquisition. This problem NO DIAL TONE problem also afflicts other winmodems. The current ltmodem5.78e.tar.gz kit from Mark Spieth has transparent support for a broader range of Xircom modems. Peter Fox provided patches supporting use of his serial monitor tool: http://www.roestock.demon.co.uk/serialmon/ Mark has implemented the rpm installers. Marv Stodolsky updates some of the documentation. Russell Coker identified and implemented a fix for devfs under 2.4 kernels, changing the name to ttys/L0 if enabled and disabling the callout device registration. Lastly, without the usefull exchanges with MANY other participants of discuss at linmodems.org, the rapid progress over these past few months would certainly not have been achieved. To avoid email address capture by SPAM organizations, personal contacts are not herein given. But any queries will surely be responded to by the discuss at linmodems.org Collaboratory On Sat, 7 Apr 2001, Brent Harding wrote: > Are the Lucent winmodem drivers able to work with any recent version of the > linux kernel? I mean the latest ones and maybe even 2.4 stuff? Will redhat > set this up fairly easy so I don't have to worry about IO ports and IRQ's? > > > > _______________________________________________ > Speakup mailing list > Speakup at braille.uwo.ca > http://speech.braille.uwo.ca/mailman/listinfo/speakup > -- Janina Sajka, Director Technology Research and Development Governmental Relations Group American Foundation for the Blind (AFB) Email: janina at afb.net Phone: (202) 408-8175 Will electronic books surpass print books? Read our white paper, Surpassing Gutenberg, at http://www.afb.org/ebook.html Download a free sample Digital Talking Book edition of Martin Luther King Jr's inspiring "I Have A Dream" speech at http://www.afb.org/mlkweb.asp Learn how to make accessible software at http://www.afb.org/technology/accessapp.html
