Re: cannot open /dev/comedi0

On Tue, 11 Feb 2003, William T Wilson wrote:

> On Tue, 11 Feb 2003, Fabio Cibin wrote:
>
> > I have a DAQCard 6024E, the module ni_mio_cs load correctly but when I test
> > the Crad with the program demo in Comedilib (ie. info) this error occur:
> > cannot open /dev/comedi0
>
> Did you run comedi_configure?  You need to do:
> comedi_configure /dev/comedi0 ni_mio_cs
>
> before the card will work.  This has to be done every time the module is
> loaded.
>
> Also, don't forget to use comedi_calibrate so that the analog lines will
> be more accurate.

After you ahev done what William T Wilson suggests, also make sure
/dev/comedi0 is readable (and writeable) by you (ie check the
permissions).

-Calin

Received on 2003-02-11Z13:28:14