[Linux-gpib-general] "EDVR 0: OS error" on Ubuntu 15.04

[Philip P. <li...@ph...>]

Hi,

I'm trying to use linux-gpib with a National Instruments PCI GPIB card,
but I can't get ibtest to talk to any devices:

$ sudo ibtest
Do you wish to open a (d)evice or an interface (b)oard?
        (you probably want to open a device): d
enter primary gpib address for device you wish to open [0-30]: 8
trying to open pad = 8 on /dev/gpib0 ...
You can:
        w(a)it for an event
        write (c)ommand bytes to bus (system controller only)
        send (d)evice clear (device only)
        change remote (e)nable line (system controller only)
        (g)o to standby (release ATN line, system controller only)
        send (i)nterface clear (system controller only)
        ta(k)e control (assert ATN line, system controller only)
        get bus (l)ine status (board only)
        go to local (m)ode
        change end (o)f transmission configuration
        (q)uit
        (r)ead string
        perform (s)erial poll (device only)
        change (t)imeout on io operations
        request ser(v)ice (board only)
        (w)rite data string
: w
enter a string to send to your device: *IDN?
sending string: *IDN?

gpib status is:
ibsta = 0x8100  < ERR CMPL >
iberr= 0
EDVR 0: OS error

ibcnt = 25
You can:
        w(a)it for an event
        write (c)ommand bytes to bus (system controller only)
        send (d)evice clear (device only)
        change remote (e)nable line (system controller only)
        (g)o to standby (release ATN line, system controller only)
        send (i)nterface clear (system controller only)
        ta(k)e control (assert ATN line, system controller only)
        get bus (l)ine status (board only)
        go to local (m)ode
        change end (o)f transmission configuration
        (q)uit
        (r)ead string
        perform (s)erial poll (device only)
        change (t)imeout on io operations
        request ser(v)ice (board only)
        (w)rite data string
: q


This GPIB card has worked fine on previous Ubuntu versions -- here is
the PCI ID information, OS and kernel release and GPIB config:


$ lspci
07:01.0 Communication controller: National Instruments PCI-GPIB (rev 01)


$ lsb_release  -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 15.04
Release:        15.04
Codename:       vivid

$ uname -a
Linux syrys 3.19.0-77-generic #85-Ubuntu SMP Fri Dec 2 03:43:54 UTC 2016
x86_64 x86_64 x86_64 GNU/Linux

$ cat /etc/gpib.conf
/***********************************************************************
                 GPIB.CONF IEEE488 library config file
                             -------------------

   copyright            : (C) 2002 by Frank Mori Hess
                          (C) 1994 by C.Schroeter
   email                : fm...@us...
 ***************************************************************************/
/***************************************************************************
 *
 *   Syntax:
 *
 *         interface { ... } starts new interface board section
 *         device {...} device configuration
 *
 ***************************************************************************/

/* This section configures the configurable driver characteristics
 * for an interface board, such as board address, and interrupt level.
 * minor = 0 configures /dev/gpib0, minor = 1 configures /dev/gpib1, etc.
 */

interface {
        minor = 0       /* board index, minor = 0 uses /dev/gpib0, minor
= 1 uses /dev/gpib1, etc. */
        board_type = "ni_pci"   /* type of interface board being used */
        name = "gpib"   /* optional name, allows you to get a board
descriptor using ibfind() */
        pad = 0 /* primary address of interface             */
        sad = 0 /* secondary address of interface           */
        timeout = T3s   /* timeout for commands */

        eos = 0x0a      /* EOS Byte, 0xa is newline and 0xd is carriage
return */
        set-reos = yes  /* Terminate read if EOS */
        set-bin = no    /* Compare EOS 8-bit */
        set-xeos = no   /* Assert EOI whenever EOS byte is sent */
        set-eot = yes   /* Assert EOI with last byte on writes */

/* settings for boards that lack plug-n-play capability */
/*      base = 0 */     /* Base io ADDRESS                  */
/*      irq  = 0 */     /* Interrupt request level */
/*      dma  = 0 */     /* DMA channel (zero disables)      */

/* pci_bus and pci_slot can be used to distinguish two pci boards
supported by the same driver */
/*      pci_bus = 0 */
/*      pci_slot = 7 */

        master = yes    /* interface board is system controller */
}



Does anyone know what might be going on here?
I'm not getting any error messages in dmesg :(


Thanks,
-- 
Phil.
li...@ph...
http://www.philpem.me.uk/