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Re: [gpsd-dev] RFC: Patch tp prevent call to ntpd_link_* for driver_nmea

From: Gary E. Miller
Subject: Re: [gpsd-dev] RFC: Patch tp prevent call to ntpd_link_* for driver_nmea2000
Date: Wed, 30 May 2012 12:50:35 -0700

Yo Reinhard!

On Wed, 30 May 2012 12:33:44 -0700
"Gary E. Miller" <address@hidden> wrote:

> I think I see your problem now, in that the ioctl(TIOCMWAIT) fails on
> the CAN device.  So what you need to do is come up with a patch that
> stops the PPS thread from startnig but allows the ntpd shared memory
> to be allocated.  Should be easy to do.

Looks like you got it right in patch:   

I there are other broken parts in that area, but not your problem.  Someone
has misunderstood the relationship between PPS_ENABLE, and having TIOCMWAIT.
It is supposed to be possible to do PPS w/o TIOCMWAIT if kernel PPS is
enabled, but that has been munged.  The BSD people will have to fix it, 
if they care.

Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97701
        address@hidden  Tel:+1(541)382-8588

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