Re: [gpsd-dev] Status NMEA2000

[Eric S. Raymond]

address@hidden <address@hidden>:
> Hello,
> 
> not quite what i have expected,
> 
> address@hidden:~/gpsd/gpsd$ ./gpsd -n -N -G -D0 nmea2000://can0 /dev/ttyUSB4 
> gpsd:ERROR: PPS ioctl(TIOCMIWAIT) on /dev/ttyUSB4 failed: 22 Invalid argument
> address@hidden:~/gpsd/gpsd$ ./gpsd -n -N -G -D0 /dev/ttyUSB4 
> gpsd:ERROR: PPS ioctl(TIOCMIWAIT) on /dev/ttyUSB4 failed: 22 Invalid argument
> address@hidden:~/gpsd/gpsd$ ./gpsd -n -N -G -D0 nmea2000://can0
> address@hidden:~/gpsd/gpsd$ 
> 
> The device is connected by a
> 
> cp210x
> 
> device to USB.

OK, so I think this means the cp210x driver doesn't support TIOCMIWAIT and
is returning EINVAL on the attempt.  Annoying but harmless.

The meatball-surgery way to prevent this message would be to disable starting
the PPS thread on USB devices. But we have a PPS device - the Macx-1 - that 
this 
would disable.

I'm much more concerned about your hang reports.  Are you still seeing those?
-- 
                <a href="http://www.catb.org/~esr/";>Eric S. Raymond</a>