err 22 on comedi_open?

• From: Heinrich du Toit <heinrichdt_at_tlabs.ac.za>
• Date: Fri, 31 Aug 2007 10:07:31 +0200

Hi

When I do dev = comedi_open(devicename)

I get errno = 22 (Invalid argument)
but dev is not NULL
and everything seems fine after that.

I've set loglevel = 4
and get:
----
Opening.. /dev/comedi0
comedi_perror(): __comedi_errno=22
libc error: Invalid argument
Comedi device opened
----

The first  and last line is my own output from my code:

    printf("Opening.. %s\n",deviceName);
    cDevice = comedi_open(deviceName);
    if (!cDevice){
      return -1;
    }
    printf("Comedi device opened\n");

----
The main reason I'm asking is because I'm not sure how to correctly
handle this error situation?

Thanks
-Heinrich

Received on 2007-08-31Z07:07:31