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Re: [RFC PATCH 0/3] UART slave device bus

From Pavel Machek <pavel@ucw.cz>
Newsgroups linux.kernel
Subject Re: [RFC PATCH 0/3] UART slave device bus
Date 2016-08-18 13:20 +0200
Message-ID <s7twB-7tk-5@gated-at.bofh.it> (permalink)
References <s7k9X-TX-3@gated-at.bofh.it> <s7sTT-6Vc-5@gated-at.bofh.it> <s7tdh-75c-53@gated-at.bofh.it> <s7tdh-75c-51@gated-at.bofh.it>
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Hi!

> > I am actually not convinced that GPS should be represented as
> > /dev/ttyS0 or similar TTY. It think they deserve their own driver
> > exposing them as simple character devices. That way we can have a
> > proper DEVTYPE and userspace can find them correctly. We can also
> > annotate them if needed for special settings.
> 
> I would _love_ to see that happen, but what about the GPS line
> discipline that we have today?  How would that match up with a char
> device driver?

./drivers/usb/serial/garmin_gps.c ?

Hmm, some cleanups would be welcome there... plus it would be good to
know what is its interface to userland... it is not easily apparent
from the code.

Actually, having some kind of common support for GPSes in the kernel
would be nice. (Chardev that spits NMEA data?) For example N900 GPS is
connected over network (phonet) interface, with userland driver
translating custom protocol into NMEA. Not very nice from "kernel
should provide hardware abstraction" point of view.

Best regards,

									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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[RFC PATCH 0/3] UART slave device bus Rob Herring <robh@kernel.org> - 2016-08-18 03:20 +0200
  Re: [RFC PATCH 0/3] UART slave device bus Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-08-18 12:30 +0200
    Re: [RFC PATCH 0/3] UART slave device bus Marcel Holtmann <marcel@holtmann.org> - 2016-08-18 12:40 +0200
      Re: [RFC PATCH 0/3] UART slave device bus Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-08-18 13:00 +0200
        Re: [RFC PATCH 0/3] UART slave device bus Rob Herring <robh@kernel.org> - 2016-08-18 16:00 +0200
    Re: [RFC PATCH 0/3] UART slave device bus Rob Herring <robh@kernel.org> - 2016-08-18 15:20 +0200
      Re: [RFC PATCH 0/3] UART slave device bus Rob Herring <robh@kernel.org> - 2016-08-19 03:50 +0200
        Re: [RFC PATCH 0/3] UART slave device bus One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-08-19 13:10 +0200
  Re: [RFC PATCH 0/3] UART slave device bus "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-08-18 12:40 +0200
    Re: [RFC PATCH 0/3] UART slave device bus Pavel Machek <pavel@ucw.cz> - 2016-08-18 12:50 +0200
      Re: [RFC PATCH 0/3] UART slave device bus Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-08-18 13:00 +0200
        Re: [RFC PATCH 0/3] UART slave device bus "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-08-18 13:20 +0200
        Re: [RFC PATCH 0/3] UART slave device bus One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-08-18 16:50 +0200
      Re: [RFC PATCH 0/3] UART slave device bus "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-08-18 13:00 +0200
      Re: [RFC PATCH 0/3] UART slave device bus "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-08-18 13:30 +0200
    Re: [RFC PATCH 0/3] UART slave device bus Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-08-18 13:00 +0200
      Re: [RFC PATCH 0/3] UART slave device bus Marcel Holtmann <marcel@holtmann.org> - 2016-08-18 13:10 +0200
        Re: [RFC PATCH 0/3] UART slave device bus Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-08-18 13:30 +0200
          Re: [RFC PATCH 0/3] UART slave device bus Pavel Machek <pavel@ucw.cz> - 2016-08-18 13:50 +0200
          Re: [RFC PATCH 0/3] UART slave device bus Marcel Holtmann <marcel@holtmann.org> - 2016-08-18 14:00 +0200
      Re: [RFC PATCH 0/3] UART slave device bus Pavel Machek <pavel@ucw.cz> - 2016-08-18 13:20 +0200
        Re: [RFC PATCH 0/3] UART slave device bus "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-08-18 13:20 +0200
          Re: [RFC PATCH 0/3] UART slave device bus Marcel Holtmann <marcel@holtmann.org> - 2016-08-18 13:50 +0200
            Re: [RFC PATCH 0/3] UART slave device bus "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-08-18 14:20 +0200
        Re: [RFC PATCH 0/3] UART slave device bus Marcel Holtmann <marcel@holtmann.org> - 2016-08-18 13:50 +0200
          Re: [RFC PATCH 0/3] UART slave device bus Pavel Machek <pavel@ucw.cz> - 2016-08-18 15:10 +0200
    Re: [RFC PATCH 0/3] UART slave device bus Marcel Holtmann <marcel@holtmann.org> - 2016-08-18 13:00 +0200
      Re: [RFC PATCH 0/3] UART slave device bus "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-08-18 13:10 +0200
        Re: [RFC PATCH 0/3] UART slave device bus Marcel Holtmann <marcel@holtmann.org> - 2016-08-18 13:50 +0200
          Re: [RFC PATCH 0/3] UART slave device bus "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-08-18 14:10 +0200
  Re: [RFC PATCH 0/3] UART slave device bus Pavel Machek <pavel@ucw.cz> - 2016-08-18 13:10 +0200
  Re: [RFC PATCH 0/3] UART slave device bus Linus Walleij <linus.walleij@linaro.org> - 2016-08-18 15:20 +0200
    Re: [RFC PATCH 0/3] UART slave device bus Marcel Holtmann <marcel@holtmann.org> - 2016-08-19 03:50 +0200
  Re: [RFC PATCH 0/3] UART slave device bus One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-08-18 16:30 +0200
    Re: [RFC PATCH 0/3] UART slave device bus "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-08-19 03:10 +0200
    Re: [RFC PATCH 0/3] UART slave device bus "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-08-19 03:30 +0200
    Re: [RFC PATCH 0/3] UART slave device bus Rob Herring <robh@kernel.org> - 2016-08-19 04:50 +0200
      Re: [RFC PATCH 0/3] UART slave device bus One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-08-19 13:40 +0200
        Re: [RFC PATCH 0/3] UART slave device bus Sebastian Reichel <sre@kernel.org> - 2016-08-19 17:40 +0200
  Re: [RFC PATCH 0/3] UART slave device bus Sebastian Reichel <sre@kernel.org> - 2016-08-19 03:30 +0200
    Re: [RFC PATCH 0/3] UART slave device bus Rob Herring <robh@kernel.org> - 2016-08-19 03:40 +0200
      Re: [RFC PATCH 0/3] UART slave device bus Sebastian Reichel <sre@kernel.org> - 2016-08-19 07:30 +0200
        Re: [RFC PATCH 0/3] UART slave device bus "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-08-19 09:40 +0200
          Re: [RFC PATCH 0/3] UART slave device bus Oleksij Rempel <linux@rempel-privat.de> - 2016-08-19 10:00 +0200
            Re: [RFC PATCH 0/3] UART slave device bus "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-08-19 20:00 +0200
              Re: [RFC PATCH 0/3] UART slave device bus Oleksij Rempel <linux@rempel-privat.de> - 2016-08-19 22:30 +0200
              Re: [RFC PATCH 0/3] UART slave device bus One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-08-20 15:40 +0200
                Re: [RFC PATCH 0/3] UART slave device bus "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-08-21 10:00 +0200
                Re: [RFC PATCH 0/3] UART slave device bus Sebastian Reichel <sre@kernel.org> - 2016-08-22 22:50 +0200
                Re: [RFC PATCH 0/3] UART slave device bus "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-08-22 23:30 +0200
                Re: [RFC PATCH 0/3] UART slave device bus Arnd Bergmann <arnd@arndb.de> - 2016-08-22 23:50 +0200
                Re: [RFC PATCH 0/3] UART slave device bus Sebastian Reichel <sre@kernel.org> - 2016-08-23 00:50 +0200
                Re: [RFC PATCH 0/3] UART slave device bus One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-08-23 01:00 +0200
                Re: [RFC PATCH 0/3] UART slave device bus Sebastian Reichel <sre@kernel.org> - 2016-08-23 01:20 +0200
                Re: [RFC PATCH 0/3] UART slave device bus "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-08-23 09:30 +0200
          Re: [RFC PATCH 0/3] UART slave device bus One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-08-19 13:10 +0200
            Re: [RFC PATCH 0/3] UART slave device bus "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-08-19 19:50 +0200
              Re: [RFC PATCH 0/3] UART slave device bus One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-08-20 15:30 +0200
                Re: [RFC PATCH 0/3] UART slave device bus "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-08-21 10:00 +0200
                Re: [RFC PATCH 0/3] UART slave device bus One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-08-21 19:20 +0200
                Re: [RFC PATCH 0/3] UART slave device bus "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-08-21 20:30 +0200
                Re: [RFC PATCH 0/3] UART slave device bus One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-08-22 11:20 +0200
                Re: [RFC PATCH 0/3] UART slave device bus Marcel Holtmann <marcel@holtmann.org> - 2016-08-22 11:40 +0200
        Re: [RFC PATCH 0/3] UART slave device bus One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-08-19 13:10 +0200
          Re: [RFC PATCH 0/3] UART slave device bus Sebastian Reichel <sre@kernel.org> - 2016-08-19 16:50 +0200
  Re: [RFC PATCH 0/3] UART slave device bus Arnd Bergmann <arnd@arndb.de> - 2016-08-22 14:40 +0200
    Re: [RFC PATCH 0/3] UART slave device bus Rob Herring <robh@kernel.org> - 2016-08-22 15:50 +0200
      Re: [RFC PATCH 0/3] UART slave device bus Arnd Bergmann <arnd@arndb.de> - 2016-08-22 17:30 +0200
        Re: [RFC PATCH 0/3] UART slave device bus Marcel Holtmann <marcel@holtmann.org> - 2016-08-22 17:30 +0200
          Re: [RFC PATCH 0/3] UART slave device bus Arnd Bergmann <arnd@arndb.de> - 2016-08-22 18:00 +0200
        Re: [RFC PATCH 0/3] UART slave device bus Rob Herring <robh@kernel.org> - 2016-08-22 18:50 +0200
          Re: [RFC PATCH 0/3] UART slave device bus One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-08-22 19:10 +0200
            Re: [RFC PATCH 0/3] UART slave device bus One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-08-22 19:40 +0200
              Re: [RFC PATCH 0/3] UART slave device bus Marcel Holtmann <marcel@holtmann.org> - 2016-08-22 23:20 +0200
                Re: [RFC PATCH 0/3] UART slave device bus One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-08-22 23:40 +0200
                Re: [RFC PATCH 0/3] UART slave device bus Pavel Machek <pavel@ucw.cz> - 2016-08-23 00:10 +0200
                Re: [RFC PATCH 0/3] UART slave device bus One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-08-23 01:00 +0200
                Re: [RFC PATCH 0/3] UART slave device bus Sebastian Reichel <sre@kernel.org> - 2016-08-23 02:00 +0200
                Re: [RFC PATCH 0/3] UART slave device bus One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-08-23 02:20 +0200
                Re: [RFC PATCH 0/3] UART slave device bus Sebastian Reichel <sre@kernel.org> - 2016-08-23 03:00 +0200
                Re: [RFC PATCH 0/3] UART slave device bus One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-08-24 16:00 +0200
                Re: [RFC PATCH 0/3] UART slave device bus Marcel Holtmann <marcel@holtmann.org> - 2016-08-24 16:40 +0200
                Re: [RFC PATCH 0/3] UART slave device bus Marcel Holtmann <marcel@holtmann.org> - 2016-08-23 13:50 +0200
                Re: [RFC PATCH 0/3] UART slave device bus Sebastian Reichel <sre@kernel.org> - 2016-08-23 01:10 +0200
            Re: [RFC PATCH 0/3] UART slave device bus Rob Herring <robh@kernel.org> - 2016-08-22 19:40 +0200
              Re: [RFC PATCH 0/3] UART slave device bus Sebastian Reichel <sre@kernel.org> - 2016-08-22 22:10 +0200
                Re: [RFC PATCH 0/3] UART slave device bus Rob Herring <robh@kernel.org> - 2016-08-23 00:10 +0200
                Re: [RFC PATCH 0/3] UART slave device bus Sebastian Reichel <sre@kernel.org> - 2016-08-23 00:20 +0200
        Re: [RFC PATCH 0/3] UART slave device bus One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-08-22 19:20 +0200
          Re: [RFC PATCH 0/3] UART slave device bus Marcel Holtmann <marcel@holtmann.org> - 2016-08-22 23:10 +0200
            Re: [RFC PATCH 0/3] UART slave device bus Sebastian Reichel <sre@kernel.org> - 2016-08-23 00:10 +0200
              Re: [RFC PATCH 0/3] UART slave device bus One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-08-23 01:20 +0200
                Re: [RFC PATCH 0/3] UART slave device bus Sebastian Reichel <sre@kernel.org> - 2016-08-23 01:50 +0200
            Re: [RFC PATCH 0/3] UART slave device bus One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-08-23 00:20 +0200
          Re: [RFC PATCH 0/3] UART slave device bus Linus Walleij <linus.walleij@linaro.org> - 2016-08-24 14:30 +0200
        Re: [RFC PATCH 0/3] UART slave device bus Rob Herring <robh@kernel.org> - 2016-08-23 23:20 +0200

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