Re: Using PXE+GRUB to boot Linux on a Thinkpad T20

[Patrick J. LoPresti]

Donald Becker <address@hidden> writes:

> There was a specific reason I asked about the subsystem: the "-5"
> version requires setting an undocumented register.

How can I determine the subsystem?

Something like "od -x < /proc/bus/pci/00/03.0" (which bytes?), or is
there an easier way?  Perhaps this would be a good thing to include in
some diagnostic output, maybe just when "debug" is set.

(By the way...  It occurs to me that this is just a tiny part of
handling a single sub-line of a single product from a single vendor.
And it is still ridiculous.  How do you stay sane?)

> That indicates that the 2.4 kernel was not properly activating the
> interface.  The pci-scan support is needed to activate the card.

Interesting.  Is pci-scan slated for inclusion in the stock kernel?

> The bogus MAC address is because the EEPROM isn't being read correctly.
> This is very likely a "-5" interface.
> 
> Try the 0.99Xd test driver at
>       ftp://ftp.scyld.com/pub/network/test/3c59x.c

Well, it is not a -5 interface.  It's a "3c1556B mini-PCI".  No "-5";
no "series"...  Which means it's a -0.  (This is an original T20, so
it is not terribly new.)

But the 0x99Xd test driver works anyway!  How strange is that?

Thank you!!

 - Pat