[Linux-gpib-general] Documentation

[Major A <an...@us...>]

Hi,

I just downloaded linux-gpib-3.1.4 and failed to get anything
working. This may be due to the card not being supported, or due to my
stupidity, or both. Unfortunately, the documentation shipped with the
package seems to be outdated, I couldn't find ibchk and the other
utilities mentioned, and no such modules as gpib0.o etc. are built.

I did a modprobe on the driver I believe I need (cec-gpib), which then
printed an initialization message in the system log. Now there's some
confusion as to what device files I need -- I tried various
major/minor combinations (c 31 0, c 31 17, c 160 0, c 160 17), with no
success: only c 160 0 seems to have a kernel driver behind it, but it
says "invalid argument" to anything I do. I'd like to use the VFS
interface, so I didn't bother setting up a config file etc.

Another potential problem is the card: it's an HP PCI card and has two
chips on it: a PLX9050 (which is also used by cards supported by
cec-gpib and ines-gpib, apparently), and a Xilinx FPGA. I only hope
that it's compatible to one of the other PCI cards... This is the
output of lspci -v:

01:0a.0 Communication controller: PLX Technology, Inc. PCI <-> IOBus Bridge (rev 01)
        Subsystem: Hewlett-Packard Company: Unknown device 10b0
        Flags: medium devsel, IRQ 11
        Memory at ff8fec00 (32-bit, non-prefetchable) [size=128]
        I/O ports at dc00 [size=128]
        Memory at ff8fe800 (32-bit, non-prefetchable) [size=32]
        Memory at f6af8000 (32-bit, prefetchable) [size=32K]
        Memory at ff8fe400 (32-bit, non-prefetchable) [size=16]

Anyone recognize this?

Before I forget: I use devfs, is there any support for it in
linux-gpib? It would be nice to have it, so I wouldn't have to create
device files "by hand".

Any help would be much appreciated, in particular the VFS interface
stuff.

  Andras

===========================================================================
Major Andras
    e-mail: an...@us...
    www:    http://andras.webhop.org/
===========================================================================