[ltp] thinkpad t20 modem

James Mckenzie linux-thinkpad@linux-thinkpad.org
Sat, 24 May 2003 09:04:28 -0700


These are all PCI devices and can share an IRQ.  This is not usually the 
problem with the LT modem device.  Usually the problem is either 
incorrect memory location for the device or the wrong port selection.  I 
think I had to specify the correct port for the modem on my A22p system.

James McKenzie

matt zagrabelny wrote:

>i have a thinkpad t20 with debian installed on it. i am trying to get
>the modem working. heres my current situation:
>i have downloaded ltmodem sources from http://ltmodem.heby.de/ and
>compiled the modules. this step works, it is when the modules are
>installed is where the problem occurs.
>the network and sound modules are not loaded when i try the following:
>(note: lt_modem loads correctly)
>zero:~# modprobe lt_serial
>/lib/modules/2.4.20/ltmodem/lt_serial.o: init_module: No such device
>Hint: insmod errors can be caused by incorrect module parameters,
>including invalid IO or IRQ parameters.
>      You may find more information in syslog or the output from dmesg
>/lib/modules/2.4.20/ltmodem/lt_serial.o: insmod
>/lib/modules/2.4.20/ltmodem/lt_serial.o failed
>/lib/modules/2.4.20/ltmodem/lt_serial.o: insmod lt_serial failed
>Loading Lucent Modem Controller driver version 8.26
>PCI: Found IRQ 11 for device 00:03.0
>PCI: Sharing IRQ 11 with 00:03.1
>3c59x: Donald Becker and others. www.scyld.com/network/vortex.html
>00:03.0: 3Com PCI 3c556B Laptop Hurricane at 0x1800. Vers LK1.1.16
>output from lspci for video, audio, network, modem, and cardbus bridge
>report that all the above devices are sharing a pin and an IRQ 
>zero:~#lspci -vv
>Interrupt: pin A routed to IRQ 11
>this interrupt line is the same for all the afformentioned devices.
>how can all of these devices be sharing the same pin and IRQ? does this
>make sense to anyone?
>anyhow back to the problem at hand. i am rapidly running out of ideas to
>get the lt_serial module loaded correctly.
>anyone with any ideas please help.
>matt zagrabelny