Re: [gpsd-users] gpsd:WARN: PPS TIOCMIWAIT returns unchanged state, ppsmonitor sleeps 10

[Gary E. Miller]

Yo folkert!

On Mon, 1 Jul 2013 21:43:46 +0200
folkert <address@hidden> wrote:

> > > KPPS data: using clear gpsd:INFO: KPPS cycle:  999983, duration:
> > > 99984 @ 1372687480.917933407 gpsd:WARN: PPS TIOCMIWAIT returns
> > > unchanged state, ppsmonitor sleeps 10
> > 
> > What type of serial port do you have?  A lot of linux serial drivers
> > do not support TIOCMIWAIT.
> 
> It is an IBM ThinkCentre M52 (8215F7G) with:
> 
> [    3.202517] Serial: 8250/16550 driver, 32 ports, IRQ sharing
> enabled [    3.222927] serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a
> 16550A [    3.256381] serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a
> 16550A [    3.328789] 00:0c: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
> [    3.364454] 00:0d: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A

I do not know that laptop model, can you tell me what type of serial port
that is?  And what driver you have attached?

> I did notice that the pulse width was 10ms, I increased that to 200ms.
> That did not solve it.

gpsd can handle as short a pulse as the hardware can detect.

Also, can you confirm:
        you are running gpsd as root?
        yur kernel version?

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

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