[lug] PCMCIA NIC problems

[John Karns]

On Tue, 10 Jul 2001, Ferdinand Schmid said:

> HI,
> I am in the process of upgrading my laptop (IBM TP240) to kernel 2.4.
> Under 2.2 I had my ethernet card, a 3COM 3CXFE575CT working properly.
> After my upgrade this very same card doesn't work anymore.  Based on the
> PCMCIA docs it should be supported - and it works fine in a
> Dell Latitude laptop running an identical version of Linux.

Sorry I can't give a direct answer here; but did you compile the pcmcia-cs
pkg from source?  There are two or three options which could be affecting
it:

     Include 32-bit (CardBus) card support?
        This option must be selected if you wish to use 32-bit CardBus
        cards.  It is not required for CardBus bridge support, if you
        only plan to use 16-bit PC Cards.

     Include PnP BIOS resource checking?
        This builds additional code into the PCMCIA core module to
        communicate with a system's PnP BIOS to obtain resource
        information for built-in ``motherboard'' devices (serial and
        parallel ports, sound, etc), to help avoid resource conflicts.
        If enabled, some extra resource files will be created under
        /proc/bus/pccard, and the lspnp and setpnp tools can be used to
        view and manipulate PnP BIOS devices.  However, this setting
        causes problems on some laptops and is not turned on by default.

The 2nd option above is essential on my Dell Inspiron 8000 or the system
freezes when attempting to load the pcmcia driver (Texas
Instruments PCI4451 PC card Cardbus Controller chip).

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