Re: ni_usb with multiple devices

On Freitag, 16. November 2018 21:42:37 CET Frank Mori Hess wrote:
> On Thu, Oct 25, 2018 at 2:07 AM Manuel Mommertz <[email protected]> 
wrote:
> > we want to use multiple GPIB-adapter from NI on one host. But there is
> > currently no way to fix the association between a GPIB-board and an
> > NI-GPIB- adapter. With each reboot we get a random mapping. To fix this
> > quick and dirty I prepared the attached patch against
> > linux-gpib-modules-4.2.0-rc1.
> Thanks, I applied your patch.  Really, all the drivers should support
> selection by device path.  I was just too lazy to update them all.
> 
> > To fix it the right way, I think there should be another config entry,
> > like
> > 'usb_serial'. Would be nice if you can include support for this in future
> > versions.
> 
> Selecting the hardware by serial number would be fine too (for the
> hardware/drivers that provide serial numbers).  There's nothing wrong
> with selecting by device path though.

Just to make it clear: My patch selects the hardware by serial but (mis-)uses 
the config entry for device path to hold the wanted serial. That is the reason 
I call it quick and dirty.

Manuel