From: Pavel Machek <pavel-+ZI9xUNit7I@public.gmane.org>
To: Andy Shevchenko
<andriy.shevchenko-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
Cc: Linus Walleij
<linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
"linux-iio-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-iio-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Jonathan Cameron <jic23-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Greg Kroah-Hartman
<gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>,
Marcel Holtmann <marcel-kz+m5ild9QBg9hUCZPvPmw@public.gmane.org>,
Jiri Slaby <jslaby-IBi9RG/b67k@public.gmane.org>,
Sebastian Reichel <sre-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>,
"Dr . H . Nikolaus Schaller"
<hns-xXXSsgcRVICgSpxsJD1C4w@public.gmane.org>,
Peter Hurley
<peter-WaGBZJeGNqdsbIuE7sb01tBPR1lH4CV8@public.gmane.org>,
Alan Cox
<gnomes-qBU/x9rampVanCEyBjwyrvXRex20P6io@public.gmane.org>,
Loic Poulain
<loic.poulain-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
NeilBrown <neil-+NVA1uvv1dVBDLzU/O5InQ@public.gmane.org>,
"linux-bluetooth-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-bluetooth-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"linux-serial-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-serial-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: GPS drivers (was Re: [PATCH v2 0/9] Serial slave device bus)
Date: Fri, 27 Jan 2017 21:02:22 +0100 [thread overview]
Message-ID: <20170127200222.GF20571@amd> (raw)
In-Reply-To: <1484928971.2133.273.camel-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
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On Fri 2017-01-20 18:16:11, Andy Shevchenko wrote:
> On Fri, 2017-01-20 at 16:26 +0100, Linus Walleij wrote:
>
> > > Now, NMEA knows about some of the complexity (not AGPS), but gets
> > > the
> > > details wrong. In particular, it would be good to have error
> > > estimates
> > > and velocities from the same moment you get position estimates.
> >
> > NMEA if it is this:
> > https://en.wikipedia.org/wiki/NMEA_0183
> >
> > Seems to be a high-level format such as XML or CSV or any other
> > $FAVOURITE_ASCII_TRANSPORT format.
>
> Not exactly. It depends on device settings.
> Old GPS I used to play with have AT command to switch between ASCII and
> binary format. Some of the devices might use non-standard binary
> protocols (however, representable as NMEA), etc.
Apparently NMEA has some serious limitations. gpsd authors have some
good docs about that.
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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next prev parent reply other threads:[~2017-01-27 20:02 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-16 22:54 [PATCH v2 0/9] Serial slave device bus Rob Herring
2017-01-16 22:54 ` [PATCH v2 1/9] tty: move the non-file related parts of tty_release to new tty_release_struct Rob Herring
2017-01-16 22:54 ` [PATCH v2 2/9] tty_port: allow a port to be opened with a tty that has no file handle Rob Herring
2017-01-17 14:57 ` One Thousand Gnomes
2017-01-19 13:37 ` Greg Kroah-Hartman
2017-01-19 15:05 ` Rob Herring
2017-01-19 15:23 ` Rob Herring
2017-01-16 22:54 ` [PATCH v2 3/9] tty_port: make tty_port_register_device wrap tty_port_register_device_attr Rob Herring
2017-01-16 22:54 ` [PATCH v2 4/9] tty: constify tty_ldisc_receive_buf buffer pointer Rob Herring
2017-01-19 16:24 ` Greg Kroah-Hartman
2017-01-16 22:54 ` [PATCH v2 5/9] tty_port: Add port client functions Rob Herring
2017-01-16 22:54 ` [PATCH v2 6/9] dt/bindings: Add a serial/UART attached device binding Rob Herring
2017-01-16 22:54 ` [PATCH v2 7/9] serdev: Introduce new bus for serial attached devices Rob Herring
2017-01-18 11:53 ` Frédéric Danis
[not found] ` <09cdab76-ee1a-45da-699f-a66bf7148579-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2017-01-18 21:26 ` Rob Herring
2017-01-16 22:54 ` [PATCH v2 8/9] serdev: add a tty port controller driver Rob Herring
2017-01-18 12:42 ` Andy Shevchenko
2017-01-18 15:03 ` Rob Herring
2017-01-16 22:54 ` [PATCH v2 9/9] tty_port: register tty ports with serdev bus Rob Herring
2017-01-17 11:07 ` [PATCH v2 0/9] Serial slave device bus Pavel Machek
[not found] ` <20170116225436.17505-1-robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2017-01-20 1:36 ` msuchanek
[not found] ` <7d6a8a629f8b618cdb09c9112d1e5986-l3A5Bk7waGM@public.gmane.org>
2017-01-20 9:50 ` Sebastian Reichel
2017-01-20 13:44 ` Greg Kroah-Hartman
2017-01-20 13:55 ` Linus Walleij
2017-01-20 14:14 ` Marcel Holtmann
[not found] ` <41321720-85FD-4CC0-8710-BB044DA37F6F-kz+m5ild9QBg9hUCZPvPmw@public.gmane.org>
2017-01-20 14:23 ` H. Nikolaus Schaller
2017-01-20 14:22 ` GPS drivers (was Re: [PATCH v2 0/9] Serial slave device bus) Pavel Machek
2017-01-20 15:26 ` Linus Walleij
2017-01-20 16:16 ` Andy Shevchenko
[not found] ` <1484928971.2133.273.camel-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2017-01-27 20:02 ` Pavel Machek [this message]
2017-01-20 20:23 ` Pavel Machek
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