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Re: [gpsd-dev] PPS over USB
From: |
Gary E. Miller |
Subject: |
Re: [gpsd-dev] PPS over USB |
Date: |
Sun, 6 May 2012 15:41:46 -0700 |
Yo dave!
On Sun, 06 May 2012 15:10:09 -0700
dave taht <address@hidden> wrote:
> On 05/06/2012 03:07 PM, Eric S. Raymond wrote:
> > Ed W<address@hidden>:
> >> Incidentally I have a load of these (very inexpensive):
> >> http://www.bluenext.co.uk/bluetooth-products/gps/92-bn-903s-gps-dongle.html
> >>
> >> They are detected as a "cp210x: v0.09:Silicon Labs CP210x RS232
> >> serial adaptor driver". Some googling suggests this is a USB2
> >> chipset?
> > It is, but it sucks. Due to the vendor's secrecy fetish, the Linux
> > driver for the CP2101 couldn't see 1PPS even if the device had my
> > nagic hardware patch. This is the exact reason our UniTraq samples
> > didn't work.
> magic hardware patch?
Yup. Hardware patch connecting PPS from the GPS to CTS on the CP210x.
> kernel patch?
That too, if you want to get the cp210x driver to support ioctl(TIOCMWAIT)
then that would be a kernel patch.
> Building kernels is not a lot of fun
> for cerowrt, I don't have a major build scheduled til thursday....
Well, just be sure you have the PL2303 driver in the kernel and you are
good to go with the Navisus GR-601W engineering sample.
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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- Re: [gpsd-dev] PPS over USB, (continued)
- Re: [gpsd-dev] PPS over USB, Hal Murray, 2012/05/07
- Re: [gpsd-dev] PPS over USB, Ed W, 2012/05/07
- Re: [gpsd-dev] PPS over USB, tz, 2012/05/07
- Re: [gpsd-dev] PPS over USB, Ed W, 2012/05/07
- Re: [gpsd-dev] PPS over USB, Eric S. Raymond, 2012/05/06
- Re: [gpsd-dev] PPS over USB, dave taht, 2012/05/06
- Re: [gpsd-dev] PPS over USB,
Gary E. Miller <=
- Re: [gpsd-dev] PPS over USB, Ed W, 2012/05/07
- Re: [gpsd-dev] PPS over USB, Gary E. Miller, 2012/05/07
- Re: [gpsd-dev] PPS over USB, Eric S. Raymond, 2012/05/07
- Re: [gpsd-dev] PPS over USB, Eric S. Raymond, 2012/05/06
- Re: [gpsd-dev] PPS over USB, Eric S. Raymond, 2012/05/06
- Re: [gpsd-dev] PPS over USB, Terje Mathisen, 2012/05/06
- Re: [gpsd-dev] PPS over USB, Gary E. Miller, 2012/05/06
- Re: [gpsd-dev] PPS over USB, Dave Taht, 2012/05/06
- Re: [gpsd-dev] PPS over USB, Ed W, 2012/05/07
- Re: [gpsd-dev] PPS over USB, Terje Mathisen, 2012/05/07