Re: [comedi] NI PCI-6120 support

Hello Heinrich,

On 16/02/2022 13:26, Heinrich M wrote:
> Hello everybody
> 
> We recently acquired three new PC for using our old but gold NI PCI-6120 
> cards. Two of them will run on Windows with LabVIEW, so no problems 
> there. However one was meant to work under Debian 11.2 with an in house 
> comedi based feedback program. So far this program was used in a 
> slightly older PC with a PCI-6031E and works just fine.
> 
> Now with the PCI-6120 i can not access the device. The error message 
> "/dev/comedi0: No such file or directory" pops up. When looking for 
> solutions it first seemed like the card just needs to be configured 
> manually. I was in the middle of the process as explained at
> relacs.sourceforge.net/doc/api/comedi/index.html
> at step 11, however there is no file called /etc/init.d/boot.local which 
> was referd to in the tutorial. I guess, that I could just create my own 
> script, which is used during the system start up.
> 
> Now I didn't know, that comedi doesn't support all NI cards. The 6120 is 
> unfortunately also not listed. So before I waste more of my work hours 
> for this: Will the card be able to work at all with comedi? If so, what 
> would be the steps I need to take? Does the support list only refer to 
> autoconfigs? If not, is there an alternative?
> 
> Thanks in advance
> 
> Heinrich M
> 
> The system:
> Debian 10 with the real time kernel 4.19.0-17-rt-amd64
> i5-9600k (HTT disabled)
> Some Asus Board with two PCI slots (lspci shows the pci-6120)
> 16 GB of RAM

Unfortunately, you are correct that comedi currently does not support 
the 6120. I think the hardware is similar to 6115 (they share some NI 
manuals), but 6115 is not supported either.  There is a comment in 
comedi's ni_pcimio driver code that reads "The 6115 boards probably need 
their own driver" so I don't think ni_pcimio.c (and ni_mio_common.c) 
could be easily modified to support these cards.  It probably really 
does need a new driver to support the 6115 and 6120 cards.

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