Does anything else show up in the dmesg when you run the program and get EIO on the open? I think that's abnormal and indicates a real problem with communication to the device. Do you have another Arduino you can test with?
On Dec 2, 2011, at 09:20 , sam sokolik wrote: > This is what shows up in dmsg when I uplug/plug > > http://pastebin.com/TDCqJuMn > > How do I dell what the device driver is? > > thanks > sam > > On 12/2/2011 11:02 AM, Sebastian Kuzminsky wrote: >> On Dec 2, 2011, at 08:47 , sam sokolik wrote: >> >>> Seb had me run a trace on the port 'strace hd /dev/ttyACM0' and got >>> http://pastebin.com/SgMjTbpB >> >> EIO from open() is strange. What device driver provides the /dev/ttyACM0 >> device file? What does dmesg say when you plug in the device and run the >> program? >> >> > > ------------------------------------------------------------------------------ > All the data continuously generated in your IT infrastructure > contains a definitive record of customers, application performance, > security threats, fraudulent activity, and more. Splunk takes this > data and makes sense of it. IT sense. And common sense. > http://p.sf.net/sfu/splunk-novd2d > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users -- Sebastian Kuzminsky ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-novd2d _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users