Re: [gpsd-dev] Fwd: Re: gpsd for time sync on Ubuntu remix too hard for normals - how to improve?

[Greg Troxel]

Lisandro Damián Nicanor Pérez Meyer <address@hidden> writes:

> diff --git a/man/gpsd.xml b/man/gpsd.xml
> index ad639819..949e07a5 100644
> --- a/man/gpsd.xml
> +++ b/man/gpsd.xml
> @@ -199,7 +199,8 @@ some cellphone and handheld embedded GPSes have similar 
> behaviors.
>  Accordingly, waiting for a watch request to open the device may save
>  battery power. (This capability is rare in consumer-grade devices).
>  You should use this option if you plan to use gpsd to provide reference
> -clock information to ntpd through a memory-shared segment.
> +clock information to ntpd through a memory-shared segment. Be aware that
> +this option will keep the OS from going to sleep.
>  </para>
>  </listitem>
>  </varlistentry>


I think it's good to say something, but which OSes decide to enter which
powersave states based on what kind of userland activity seems like a
very broad brush.  So perhaps

  With -n, gpsd will continue to read from a receiver and process the
  data.  On some systems, this can prevent the system from entering sleep.
  An example is FooOS, which [MAKING STUFF UP in its default
  configuration, detects processes using CPU time, and avoids sleeping in
  that case.]