Re: [Linux-gpib-general] GPIB libs on 64-Bit machine

[Frank M. H. <fm...@sp...>]

On Tuesday 27 November 2007 12:39, Martin Ohlerich wrote:
> Hello all,
>
> I want to write gpib-DAQ software for a Keithley, which is accessed via
> gpib-usb-hs from National Instruments. For this I took the gpib-library
> from sourceforge : linux-gpib-3.2.09. The OS of my PC is Scientific
> Linux 4. I successfully installed libgpib on a 32-Bit machine.
> When I did the same steps on a 64-Bit machine I failed. The installation
> itself worked without problems. Also the modules are loaded (I checked
> this with help of lsmod). All permissions are set correctly (I even
> tried as root). By 'cat /proc/bus/usb/devices' I saw that the
> gpib-usb-hs was detected correctly. So everything looks fine.
>
> The result on the 64-Bit machine is, however, when starting 'ibtest' and

calls from a 32 bit libgpib user space library into a 64 bit kernel won't=20
work, as the ioctl structs are not 32/64 bit agnostic, and the gpib kernel=
=20
driver doesn't implement compat_ioctl.

=2D-=20
=46rank