Re: [Linux-gpib-general] Counterfeit NI GPIB-USB-HS half-works?

[dave p. <dpe...@gm...>]

Hi Hernán,
It looks like you have an unsupported clone. This line in the dmesg is
relevant:
[    4.830150] usb 1-1.6: config 1 interface 0 altsetting 0 endpoint 0x81
has an invalid bInterval 0, changing to 7
Unfortunately this board cannot be made to work with linux-gpib.
cheers,
-Dave

On Wed, 11 Jun 2025 at 22:41, Hernán Freschi <hj...@hj...> wrote:

> Hello. I installed the latest version from master (4c820721), but when
> trying to use it, it half works, and it does a lot of other weird stuff.
> I'm using a counterfeit GPIB-USB-HS from eBay (I assume it's counterfeit
> because it costed $70). The device is not detected as counterfeit by NI
> drivers on Windows, and works fine there. I can communicate with the GPIB
> device. But not on Linux. I don't get any prompts to update its firmware
> either.
> This is dmesg on a fresh boot:
>
> $ sudo dmesg|grep gpib
> [    4.912608] gpib_common: loading out-of-tree module taints kernel.
> [    4.912658] gpib_common: module verification failed: signature and/or
> required key missing - tainting kernel
> [    4.915244] gpib_common: Linux-GPIB 4.3.7 core driver loaded
> [    4.937190] usb 1-1.6: ni_usb_gpib: probe succeeded for path:
> usb-0000:00:1a.0-1.6
> [    4.937228] usbcore: registered new interface driver ni_usb_gpib
> [    5.317767] usb 1-1.6: ni_usb_gpib: unexpected data: buffer[6]=0x19,
> expected 0x2, 0xe, 0xf or 0x16
> [    5.318304] usb 1-1.6: ni_usb_gpib: unexpected data: buffer[10]=0x59,
> expected 0x96, 0x07 or 0x6e
> [    5.324141] usb 1-1.6: ni_usb_gpib: bus 1 dev num 7 attached to gpib0,
> intf 0
> [  155.040427] usb 1-1.6: ni_usb_gpib: unexpected data: buffer[6]=0x19,
> expected 0x2, 0xe, 0xf or 0x16
> [  155.040443] usb 1-1.6: ni_usb_gpib: unexpected data: buffer[10]=0x59,
> expected 0x96, 0x07 or 0x6e
> [  155.046186] usb 1-1.6: ni_usb_gpib: bus 1 dev num 7 attached to gpib0,
> intf 0
> also:[    4.717800] usb 1-1.6: new high-speed USB device number 7 using
> ehci-pci
> [    4.830150] usb 1-1.6: config 1 interface 0 altsetting 0 endpoint 0x81
> has an invalid bInterval 0, changing to 7
> [    4.830649] usb 1-1.6: New USB device found, idVendor=3923,
> idProduct=709b, bcdDevice= 1.01
> [    4.830654] usb 1-1.6: New USB device strings: Mfr=1, Product=2,
> SerialNumber=3
> [    4.830657] usb 1-1.6: Product: GPIB-USB-HS
> [    4.830659] usb 1-1.6: Manufacturer: National Instruments
> [    4.830660] usb 1-1.6: SerialNumber: 019A335E
> [    4.937190] usb 1-1.6: ni_usb_gpib: probe succeeded for path:
> usb-0000:00:1a.0-1.6
> [    5.317767] usb 1-1.6: ni_usb_gpib: unexpected data: buffer[6]=0x19,
> expected 0x2, 0xe, 0xf or 0x16
> [    5.318304] usb 1-1.6: ni_usb_gpib: unexpected data: buffer[10]=0x59,
> expected 0x96, 0x07 or 0x6e
> [    5.324141] usb 1-1.6: ni_usb_gpib: bus 1 dev num 7 attached to gpib0,
> intf 0
> [  155.040427] usb 1-1.6: ni_usb_gpib: unexpected data: buffer[6]=0x19,
> expected 0x2, 0xe, 0xf or 0x16
> [  155.040443] usb 1-1.6: ni_usb_gpib: unexpected data: buffer[10]=0x59,
> expected 0x96, 0x07 or 0x6e
> [  155.046186] usb 1-1.6: ni_usb_gpib: bus 1 dev num 7 attached to gpib0,
> intf 0
> Here are the issues:
> 1) It appears my device (HP 34401A) receives the commands, but linux-gpib
> doesn't get any acknowledgement. The device goes into remote mode if I send
> *IDN?, but I get an error message
>
> : w
> enter a string to send to your device: *RST
> sending string: *RST
>
> gpib status is:
> ibsta = 0x8000  < ERR >
> iberr= 0
> EDVR 0: OS error
>
> ibcntl = 6
> ..: r
> enter maximum number of bytes to read [1024]: 199
> trying to read 199 bytes from device...
> received string: ''
> Number of bytes read: 0
> gpib status is:
> ibsta = 0xc000  < ERR TIMO >
> iberr= 6
> EABO 6: Operation aborted
>
> ibcntl = 0
> this line appears in dmesg:[  164.340630] usb 3-1.6: ni_usb_gpib:
> Addressing error retval 0 error code=3
> That's as far as the first issue goes. Then:
> 2) After some time, it stops working completely. The error message changes
> to:gpib status is:
> ibsta = 0x8000  < ERR >
> iberr= 0
> EDVR 0: OS error
>
> ibcntl = 14and dmesg is flooded with
> [ 2980.442771] ni_usb_gpib: parse error: wrong start id
> [ 2980.442775] ni_usb_gpib: parse error: wrong end id
> [ 2980.442777] ni_usb_gpib: parse error: wrong count=0 for
> NIUSB_REGISTER_READ_DATA_END
> [ 2980.442779] ni_usb_gpib: unexpected data: raw_data[6]=0xff, expected 0
> [ 2980.442781] ni_usb_gpib: unexpected data: raw_data[7]=0xff, expected 0
> [ 2980.442784] 0c 00 68 00 00 00 ff ff                          ..h.....
> also, something breaks completely in my computer's USB controller and a
> reset won't fix it. When it goes into that mode, the computer even refuses
> to boot when the USB adapter is plugged. The machine needs to be completely
> turned off for it to work again. When it's in this state, gpib_config won't
> work even after a reboot, and lsusb hangs if the device is plugged in.
> Unplugging it and plugging it back in doesn't fix the issue, the computer
> needs to be powered down.
> Regards
>
>
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