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Groups > linux.kernel > #1311957
| From | Andreas Kemnade <andreas@kemnade.info> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 |
| Date | 2016-01-19 07:40 +0100 |
| Message-ID | <qSy7n-3RB-13@gated-at.bofh.it> (permalink) |
| References | (14 earlier) <qS1l8-6M6-15@gated-at.bofh.it> <qSdcC-6lQ-15@gated-at.bofh.it> <qSgat-8nF-1@gated-at.bofh.it> <qSp47-5SG-15@gated-at.bofh.it> <qSq9Q-6Tz-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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On Mon, 18 Jan 2016 22:03:19 +0000
One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> wrote:
> > > Your user space can do it (as most Android does).
> >
> > How can it do it in automatically in a standardized way without need for daemon support?
>
> You don't need to - it can be device specific. In Android it usually is.
> I've never understood why low end devices don't also abstract user space
> descriptions of power control into DT nodes as well as kernel properties ?
>
Well, on these android devices, they are only intended to run android and
have another abstraction layer where you can hide things.
If doing actions on opening or closing a tty should not be implemented in
kernel space, then an alternative I see would be to at least have proper
rfkill support for bluetooth and gps in kernel. Then userspace can at least
can talk to a standardised interface. So userspace just has to implement
generic things.
That would mean for the kernel drivers needed:
W2CBW003/bluetooth:
map the rfkill to just a simple regulator
W2SG0004/gps:
being notified about incoming data
a) the nice way: getting it from the tty/tty_port layer
(but requiring changes at generic kernel code)
or
b) the ugly way:
remux the data line as a gpio and simply look for state
changes during rfkill call (probably only during unblock)
The first characters after power on would probably be lost
toggle a gpio depending on the desired and detected state
Regards,
Andreas
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Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 Mark Rutland <mark.rutland@arm.com> - 2016-01-15 12:10 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-01-15 16:10 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 Andrey Vostrikov <andrey.vostrikov@cogentembedded.com> - 2016-01-15 16:50 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-01-15 17:10 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 Peter Hurley <peter@hurleysoftware.com> - 2016-01-15 18:20 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-01-15 18:40 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 Peter Hurley <peter@hurleysoftware.com> - 2016-01-15 18:50 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-01-15 19:00 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 Peter Hurley <peter@hurleysoftware.com> - 2016-01-15 20:30 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-01-15 22:30 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 Rob Herring <robherring2@gmail.com> - 2016-01-15 23:50 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 Vostrikov Andrey <andrey.vostrikov@cogentembedded.com> - 2016-01-16 08:40 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 Rob Herring <robh@kernel.org> - 2016-01-17 00:40 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-01-17 10:00 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-01-17 15:30 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-01-17 19:00 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-01-17 20:40 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-01-18 09:20 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 Andrey Vostrikov <andrey.vostrikov@cogentembedded.com> - 2016-01-18 10:00 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-01-18 13:00 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-01-18 12:30 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-01-18 22:00 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-01-18 23:10 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-01-18 23:40 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-01-19 15:30 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-01-20 18:40 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-01-20 17:20 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-01-20 18:50 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-01-20 19:10 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 Tomeu Vizoso <tomeu@tomeuvizoso.net> - 2016-01-22 17:00 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 Rob Herring <robherring2@gmail.com> - 2016-01-22 18:00 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-01-22 21:20 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 Andreas Kemnade <andreas@kemnade.info> - 2016-01-23 08:50 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-01-23 13:20 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-01-23 18:30 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-01-23 23:10 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-01-24 18:20 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-01-25 11:40 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 Andreas Kemnade <andreas@kemnade.info> - 2016-01-19 07:40 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 Dmitry Torokhov <dmitry.torokhov@gmail.com> - 2016-01-20 20:40 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 Vostrikov Andrey <andrey.vostrikov@cogentembedded.com> - 2016-01-20 21:10 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 Mark Rutland <mark.rutland@arm.com> - 2016-01-15 17:20 +0100
Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 "H. Nikolaus Schaller" <hns@goldelico.com> - 2016-01-15 20:20 +0100
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