From: Mauro Carvalho Chehab <mchehab@redhat.com>
To: Gerd Hoffmann <kraxel@redhat.com>
Cc: Christoph Bartelmus <lirc@bartelmus.de>,
awalls@radix.net, dmitry.torokhov@gmail.com, j@jannau.net,
jarod@redhat.com, jarod@wilsonet.com, jonsmirl@gmail.com,
khc@pm.waw.pl, linux-input@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-media@vger.kernel.org,
superm1@ubuntu.com
Subject: Re: [RFC] What are the goals for the architecture of an in-kernel IR system?
Date: Tue, 01 Dec 2009 11:11:54 -0200 [thread overview]
Message-ID: <4B15161A.80101@redhat.com> (raw)
In-Reply-To: <4B14E747.9060208@redhat.com>
Gerd Hoffmann wrote:
> On 11/30/09 13:34, Mauro Carvalho Chehab wrote:
>> Christoph Bartelmus wrote:
>>> Hi Mauro,
>>>
>>> I just don't want to change a working interface just because it could be
>>> also implemented in a different way, but having no other visible
>>> advantage
>>> than using more recent kernel features.
>>
>> I agree. The main reasons to review the interface is:
>> 1) to avoid any overlaps (if are there any) with the evdev interface;
>
> Use lirc for raw samples.
> Use evdev for decoded data.
>
> Hardware/drivers which can handle both can support both interfaces.
> IMHO it makes no sense at all to squeeze raw samples through the input
> layer. It looks more like a serial line than a input device. In fact
> you can homebrew a receiver and connect it to the serial port, which was
> quite common in pre-usb-ir-receiver times.
I agree.
>
>> 2) to have it stable enough to be used, without changes, for a long
>> time.
>
> It isn't like lirc is a new interface. It has been used in practice for
> years. I don't think API stability is a problem here.
You're probably right here, but, as, currently, changing the API is not a problem,
I don't doubt that the API has changed during those years (I haven't followed
lirc API, so this is just an educated guess).
So, all I'm saying is that we should do a final review considering API stability
before merging it, eventually considering to add a few reserved fields there, if
we suspect that we might need more space for some reason.
>> True, but even if we want to merge lirc drivers "as-is", the drivers will
>> still need changes, due to kernel CodingStyle, due to the usage of
>> some API's
>> that may be deprecated, due to some breakage with non-Intel
>> architectures, due
>> to some bugs that kernel hackers may discover, etc.
>
> I assumed this did happen in already in preparation of this submission?
Yes, for just a few drivers that went on the first series of patches (on Jerod's
proposal, only 2 drivers were submitted).
Cheers,
Mauro.
next prev parent reply other threads:[~2009-12-01 13:12 UTC|newest]
Thread overview: 358+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-27 15:57 [RFC] What are the goals for the architecture of an in-kernel IR system? Jon Smirl
2009-11-27 15:57 ` Jon Smirl
2009-11-27 16:57 ` Andy Walls
2009-11-27 17:29 ` Christoph Bartelmus
2009-11-27 17:29 ` Christoph Bartelmus
2009-11-27 17:49 ` Jon Smirl
2009-11-27 17:49 ` Jon Smirl
2009-11-27 19:03 ` Ferenc Wagner
2009-11-27 19:21 ` Jon Smirl
2009-11-27 19:21 ` Jon Smirl
2009-11-28 1:34 ` Dmitry Torokhov
2009-11-29 12:01 ` Christoph Bartelmus
2009-11-29 12:01 ` Christoph Bartelmus
2009-11-30 10:41 ` Mauro Carvalho Chehab
2009-11-30 19:49 ` Krzysztof Halasa
2009-11-30 21:35 ` Jon Smirl
2009-11-30 21:35 ` Jon Smirl
2009-12-01 7:45 ` Christoph Bartelmus
2009-12-01 7:45 ` Christoph Bartelmus
2009-12-01 11:38 ` Andy Walls
2009-12-01 14:10 ` Maxim Levitsky
2009-12-03 17:31 ` Krzysztof Halasa
2009-12-03 17:31 ` Krzysztof Halasa
2009-11-28 9:04 ` Simon Kenyon
2009-11-28 9:04 ` Simon Kenyon
2009-11-28 9:04 ` Simon Kenyon
2009-11-28 11:21 ` Mauro Carvalho Chehab
2009-11-29 11:50 ` Christoph Bartelmus
2009-11-29 11:50 ` Christoph Bartelmus
2009-11-30 12:34 ` Mauro Carvalho Chehab
2009-12-01 9:52 ` Gerd Hoffmann
2009-12-01 13:11 ` Mauro Carvalho Chehab [this message]
2009-12-01 14:32 ` Jarod Wilson
2009-12-01 10:20 ` Gerd Hoffmann
2009-12-01 14:14 ` Mauro Carvalho Chehab
2009-12-01 15:28 ` Gerd Hoffmann
2009-12-03 4:29 ` Jarod Wilson
2009-12-03 12:09 ` Gerd Hoffmann
2009-12-03 17:55 ` Dmitry Torokhov
2009-12-03 18:33 ` Mauro Carvalho Chehab
2009-12-04 10:06 ` Dmitry Torokhov
2009-12-04 14:12 ` Mauro Carvalho Chehab
2009-12-04 15:42 ` Jon Smirl
2009-12-04 15:42 ` Jon Smirl
2009-12-06 7:09 ` Dmitry Torokhov
2009-12-06 11:03 ` Mauro Carvalho Chehab
2009-12-06 20:19 ` Krzysztof Halasa
2009-12-08 0:00 ` Mauro Carvalho Chehab
2009-12-08 14:06 ` Krzysztof Halasa
2009-12-07 7:48 ` Dmitry Torokhov
2009-12-07 15:34 ` Mauro Carvalho Chehab
2009-12-07 18:34 ` Dmitry Torokhov
2009-12-07 23:01 ` Mauro Carvalho Chehab
2009-12-06 7:14 ` Dmitry Torokhov
2009-12-06 11:23 ` Mauro Carvalho Chehab
2009-12-03 18:56 ` Jon Smirl
2009-12-03 18:56 ` Jon Smirl
2009-12-03 18:56 ` Jon Smirl
2009-12-03 21:10 ` Mauro Carvalho Chehab
2009-12-03 21:51 ` Christoph Bartelmus
2009-12-03 21:51 ` Christoph Bartelmus
2009-12-03 22:12 ` Dmitry Torokhov
2009-12-04 7:37 ` Christoph Bartelmus
2009-12-04 7:37 ` Christoph Bartelmus
2009-12-04 14:33 ` Mauro Carvalho Chehab
2009-12-04 21:46 ` Christoph Bartelmus
2009-12-04 21:46 ` Christoph Bartelmus
2009-12-04 22:07 ` Dmitry Torokhov
2009-12-04 23:01 ` Christoph Bartelmus
2009-12-04 23:01 ` Christoph Bartelmus
2009-12-04 23:15 ` Dmitry Torokhov
2009-12-06 11:58 ` Christoph Bartelmus
2009-12-06 11:58 ` Christoph Bartelmus
2009-12-07 7:51 ` Dmitry Torokhov
2009-12-08 22:27 ` Christoph Bartelmus
2009-12-08 22:27 ` Christoph Bartelmus
2009-12-05 0:28 ` Jon Smirl
2009-12-05 0:28 ` Jon Smirl
2009-12-05 1:48 ` Andy Walls
2009-12-05 2:10 ` Andy Walls
2009-12-05 3:45 ` Jon Smirl
2009-12-05 3:45 ` Jon Smirl
2009-12-06 2:30 ` Andy Walls
2009-12-06 17:26 ` Krzysztof Halasa
2009-12-12 22:52 ` david
2009-12-06 3:36 ` hermann pitton
2009-12-06 6:55 ` Dmitry Torokhov
2009-12-06 11:46 ` Mauro Carvalho Chehab
2009-12-06 17:48 ` Krzysztof Halasa
2009-12-06 17:52 ` Jon Smirl
2009-12-06 17:52 ` Jon Smirl
2009-12-06 20:34 ` Krzysztof Halasa
2009-12-06 21:23 ` Jon Smirl
2009-12-06 21:23 ` Jon Smirl
2009-12-07 23:44 ` Mauro Carvalho Chehab
2009-12-08 0:28 ` Jon Smirl
2009-12-08 0:28 ` Jon Smirl
2009-12-08 0:28 ` Jon Smirl
2009-12-08 11:17 ` Mauro Carvalho Chehab
2009-12-08 13:34 ` Jon Smirl
2009-12-08 13:34 ` Jon Smirl
2009-12-08 13:34 ` Jon Smirl
2009-12-08 14:56 ` Mauro Carvalho Chehab
2009-12-08 22:25 ` Christoph Bartelmus
2009-12-08 22:25 ` Christoph Bartelmus
2009-12-08 17:04 ` Dmitry Torokhov
2009-12-08 13:54 ` Krzysztof Halasa
2009-12-08 4:23 ` Dmitry Torokhov
2009-12-08 11:58 ` Mauro Carvalho Chehab
2009-12-08 14:01 ` Krzysztof Halasa
2009-12-08 14:13 ` Mauro Carvalho Chehab
2009-12-08 15:26 ` Krzysztof Halasa
2009-12-08 15:41 ` Mauro Carvalho Chehab
2009-12-08 17:12 ` Dmitry Torokhov
2009-12-08 13:57 ` Krzysztof Halasa
2009-12-08 17:25 ` Dmitry Torokhov
2009-12-08 13:52 ` Krzysztof Halasa
2009-12-08 14:07 ` Mauro Carvalho Chehab
2009-12-08 14:51 ` Jon Smirl
2009-12-08 14:51 ` Jon Smirl
2009-12-08 15:29 ` Krzysztof Halasa
2009-12-08 15:49 ` Mauro Carvalho Chehab
2009-12-08 16:26 ` Jon Smirl
2009-12-08 16:26 ` Jon Smirl
2009-12-08 4:10 ` Andy Walls
2009-12-08 22:30 ` Christoph Bartelmus
2009-12-08 22:30 ` Christoph Bartelmus
2009-12-09 2:21 ` Andy Walls
2009-12-07 18:41 ` Dmitry Torokhov
2009-12-07 20:08 ` Krzysztof Halasa
2009-12-07 21:38 ` Dmitry Torokhov
2009-12-08 15:24 ` Krzysztof Halasa
2009-12-08 0:44 ` Jon Smirl
2009-12-08 0:44 ` Jon Smirl
2009-12-08 11:23 ` Mauro Carvalho Chehab
2009-12-13 12:14 ` Mauro Carvalho Chehab
2009-12-15 11:50 ` Pavel Machek
2009-12-15 13:33 ` Mauro Carvalho Chehab
2009-12-15 13:43 ` Jon Smirl
2009-12-15 13:43 ` Jon Smirl
2009-12-15 13:43 ` Jon Smirl
2009-12-15 14:19 ` Mauro Carvalho Chehab
2009-12-15 19:58 ` Pavel Machek
2009-12-15 20:14 ` Jon Smirl
2009-12-15 20:14 ` Jon Smirl
2009-12-15 20:19 ` Pavel Machek
2009-12-15 20:19 ` Pavel Machek
2009-12-15 20:29 ` Jon Smirl
2009-12-15 20:29 ` Jon Smirl
2009-12-15 20:33 ` Pavel Machek
2009-12-15 20:45 ` Jon Smirl
2009-12-15 20:45 ` Jon Smirl
2009-12-15 20:45 ` Jon Smirl
2009-12-15 21:05 ` Pavel Machek
2009-12-15 21:05 ` Pavel Machek
2009-12-15 21:38 ` Jon Smirl
2009-12-15 21:38 ` Jon Smirl
2010-03-25 14:42 ` Mauro Carvalho Chehab
2010-03-25 18:32 ` Pavel Machek
2010-03-25 19:00 ` Mauro Carvalho Chehab
2010-03-26 11:04 ` David Härdeman
2010-03-26 11:04 ` David Härdeman
2010-03-26 11:27 ` David Härdeman
2010-03-26 11:27 ` David Härdeman
2010-03-26 14:40 ` Mauro Carvalho Chehab
2010-03-26 14:40 ` Mauro Carvalho Chehab
2010-03-26 16:01 ` Dmitry Torokhov
2010-03-26 16:01 ` Dmitry Torokhov
2010-03-26 17:22 ` Mauro Carvalho Chehab
2010-03-26 19:07 ` David Härdeman
2010-03-26 19:07 ` David Härdeman
2010-03-26 22:37 ` Jon Smirl
2010-03-26 22:37 ` Jon Smirl
2010-03-26 22:37 ` Jon Smirl
2010-03-27 8:27 ` David Härdeman
2010-03-28 23:22 ` Mauro Carvalho Chehab
2010-03-28 23:22 ` Mauro Carvalho Chehab
2010-03-29 0:51 ` Mauro Carvalho Chehab
2010-03-30 11:01 ` David Härdeman
2010-03-31 6:01 ` Mauro Carvalho Chehab
2010-03-31 6:01 ` Mauro Carvalho Chehab
2010-03-30 11:09 ` David Härdeman
2010-03-30 11:09 ` David Härdeman
2010-03-30 12:43 ` Mauro Carvalho Chehab
2010-03-30 12:43 ` Mauro Carvalho Chehab
2010-03-26 12:23 ` David Härdeman
2010-03-26 15:17 ` Mauro Carvalho Chehab
2010-03-26 15:17 ` Mauro Carvalho Chehab
2010-03-26 19:21 ` David Härdeman
2010-03-26 19:21 ` David Härdeman
2010-03-27 5:56 ` Pavel Machek
2010-03-27 5:56 ` Pavel Machek
2010-04-09 7:21 ` James Hogan
2010-04-09 10:50 ` Andy Walls
2010-04-09 12:58 ` Jarod Wilson
2010-04-09 13:02 ` Jon Smirl
2010-04-09 13:02 ` Jon Smirl
2010-04-09 13:02 ` Jon Smirl
2010-04-09 13:01 ` Mauro Carvalho Chehab
2010-04-09 21:42 ` James Hogan
2010-04-09 21:55 ` Devin Heitmueller
2010-04-09 21:55 ` Devin Heitmueller
2010-04-09 22:14 ` Andy Walls
2010-04-09 23:32 ` Mauro Carvalho Chehab
2010-04-10 0:18 ` Jon Smirl
2010-04-10 0:18 ` Jon Smirl
2010-04-10 1:01 ` Mauro Carvalho Chehab
2010-04-10 0:38 ` hermann pitton
2009-12-07 15:36 ` Mauro Carvalho Chehab
2009-12-06 11:59 ` Christoph Bartelmus
2009-12-06 11:59 ` Christoph Bartelmus
2009-12-15 11:47 ` Pavel Machek
2009-12-06 12:12 ` Christoph Bartelmus
2009-12-06 12:12 ` Christoph Bartelmus
2009-12-06 16:38 ` Jon Smirl
2009-12-06 16:38 ` Jon Smirl
2009-12-06 16:38 ` Jon Smirl
2009-12-06 20:22 ` Krzysztof Halasa
2009-12-07 23:50 ` Mauro Carvalho Chehab
2009-12-03 23:45 ` Andy Walls
2009-12-03 17:47 ` Krzysztof Halasa
2009-11-27 21:49 ` Stefan Richter
2009-11-28 1:08 ` Maxim Levitsky
2009-11-28 11:20 ` Krzysztof Halasa
2009-11-28 14:42 ` Maxim Levitsky
2009-11-28 15:25 ` Krzysztof Halasa
2009-11-28 15:35 ` Maxim Levitsky
2009-11-28 15:44 ` Krzysztof Halasa
2009-11-28 16:26 ` Maxim Levitsky
2009-11-28 16:44 ` Krzysztof Halasa
2009-11-28 16:47 ` Christoph Bartelmus
2009-11-28 16:47 ` Christoph Bartelmus
2009-11-28 17:06 ` Jon Smirl
2009-11-28 17:06 ` Jon Smirl
2009-11-28 17:35 ` Krzysztof Halasa
2009-11-28 17:37 ` Jon Smirl
2009-11-28 17:37 ` Jon Smirl
2009-11-28 17:37 ` Jon Smirl
2009-11-28 17:40 ` Krzysztof Halasa
2009-11-28 17:40 ` Krzysztof Halasa
2009-11-28 23:26 ` Andy Walls
2009-11-29 4:58 ` Dmitry Torokhov
2009-11-29 20:27 ` Krzysztof Halasa
2009-11-29 20:44 ` Jon Smirl
2009-11-29 20:44 ` Jon Smirl
2009-11-29 20:44 ` Jon Smirl
2009-11-29 21:29 ` Dmitry Torokhov
2009-11-29 21:47 ` Jon Smirl
2009-11-29 21:47 ` Jon Smirl
2009-11-29 22:48 ` Dmitry Torokhov
2009-11-29 21:31 ` Dmitry Torokhov
2009-11-30 4:50 ` Jarod Wilson
2009-11-30 0:48 ` Andy Walls
2009-12-01 10:46 ` Gerd Hoffmann
2009-12-01 11:49 ` Andy Walls
2009-12-01 14:02 ` Gerd Hoffmann
2009-12-01 14:18 ` Mauro Carvalho Chehab
2009-11-30 17:45 ` Lennart Sorensen
2009-11-29 4:32 ` Andy Walls
2009-11-29 4:50 ` Dmitry Torokhov
2009-11-29 12:40 ` Alan Cox
2009-11-29 17:28 ` Maxim Levitsky
2009-11-29 17:49 ` Ray Lee
2009-11-29 17:49 ` Ray Lee
2009-11-29 18:13 ` Alan Cox
2009-11-29 18:52 ` Ray Lee
2009-11-29 18:52 ` Ray Lee
2009-11-29 19:04 ` Alan Cox
2009-11-29 19:16 ` Jon Smirl
2009-11-29 19:16 ` Jon Smirl
2009-11-29 19:29 ` Alan Cox
2009-11-29 19:49 ` Christoph Bartelmus
2009-11-29 19:49 ` Christoph Bartelmus
2009-11-30 0:05 ` Andy Walls
2009-11-29 23:35 ` Andy Walls
2009-11-30 2:15 ` Ray Lee
2009-11-30 2:15 ` Ray Lee
2009-11-30 2:15 ` Ray Lee
2009-11-30 9:58 ` Artur Skawina
2009-11-30 11:56 ` Mauro Carvalho Chehab
2009-11-30 12:57 ` Andy Walls
2009-11-30 13:23 ` Jon Smirl
2009-11-30 13:23 ` Jon Smirl
2009-11-30 13:23 ` Jon Smirl
2009-11-30 13:24 ` Mauro Carvalho Chehab
2009-11-30 16:14 ` kevin granade
2009-11-30 16:14 ` kevin granade
2009-11-30 17:33 ` Mauro Carvalho Chehab
2009-11-30 18:02 ` Dmitry Torokhov
2009-11-30 18:27 ` Mauro Carvalho Chehab
2009-11-30 19:07 ` Dmitry Torokhov
2009-11-30 20:07 ` Krzysztof Halasa
2009-11-30 13:43 ` Maxim Levitsky
2009-11-30 14:01 ` Jon Smirl
2009-11-30 14:01 ` Jon Smirl
2009-11-30 15:04 ` Maxim Levitsky
2009-11-30 16:19 ` Mauro Carvalho Chehab
2009-11-30 20:03 ` Krzysztof Halasa
2009-11-29 18:19 ` Jon Smirl
2009-11-29 18:19 ` Jon Smirl
2009-11-29 19:00 ` Alan Cox
2009-11-30 9:57 ` Mauro Carvalho Chehab
2009-11-28 18:17 ` Stefan Richter
2009-11-28 18:58 ` Jon Smirl
2009-11-28 18:58 ` Jon Smirl
2009-11-28 18:58 ` Jon Smirl
2009-11-28 19:45 ` Stefan Richter
2009-11-28 20:08 ` Jon Smirl
2009-11-28 20:08 ` Jon Smirl
2009-11-28 20:08 ` Jon Smirl
2009-11-28 20:21 ` Krzysztof Halasa
2009-12-12 19:33 ` Pavel Machek
2009-11-28 20:29 ` Stefan Richter
2009-11-28 20:34 ` Stefan Richter
2009-11-28 20:46 ` Jon Smirl
2009-11-28 20:46 ` Jon Smirl
2009-11-28 20:46 ` Jon Smirl
2009-11-28 21:46 ` Stefan Richter
2009-11-28 22:10 ` Jon Smirl
2009-11-28 22:10 ` Jon Smirl
2009-11-28 22:10 ` Jon Smirl
2009-11-28 22:18 ` Jon Smirl
2009-11-28 22:18 ` Jon Smirl
2009-11-29 4:59 ` Dmitry Torokhov
2009-11-29 16:01 ` Mauro Carvalho Chehab
2009-11-29 16:18 ` Mauro Carvalho Chehab
2009-11-29 11:24 ` Christoph Bartelmus
2009-11-29 11:24 ` Christoph Bartelmus
2009-11-29 16:01 ` Mauro Carvalho Chehab
2009-11-28 19:55 ` Krzysztof Halasa
2009-11-28 20:14 ` Jon Smirl
2009-11-28 20:14 ` Jon Smirl
2009-11-28 20:29 ` Krzysztof Halasa
2009-11-28 17:21 ` Krzysztof Halasa
2009-11-28 17:21 ` Krzysztof Halasa
2009-11-29 11:07 ` Christoph Bartelmus
2009-11-29 11:07 ` Christoph Bartelmus
2009-11-28 16:45 ` Jon Smirl
2009-11-28 16:45 ` Jon Smirl
2009-11-28 18:45 ` Maxim Levitsky
2009-11-28 18:56 ` Jon Smirl
2009-11-28 18:56 ` Jon Smirl
2009-11-28 19:16 ` Maxim Levitsky
2009-11-28 19:30 ` Stefan Richter
2009-11-28 19:32 ` Jon Smirl
2009-11-28 19:32 ` Jon Smirl
2009-11-28 19:48 ` Stefan Richter
2009-11-29 2:47 ` Mike Lampard
2009-11-29 4:55 ` Dmitry Torokhov
2009-11-29 5:31 ` Mike Lampard
2009-11-29 7:14 ` Dmitry Torokhov
2009-11-29 21:59 ` Artur Skawina
2009-11-30 12:13 ` Mauro Carvalho Chehab
2009-12-07 17:53 Emmanuel Fusté
2009-12-07 23:16 ` Mauro Carvalho Chehab
2009-12-07 17:54 Emmanuel Fusté
2009-12-07 18:24 ` Dmitry Torokhov
2009-12-08 9:31 ` Emmanuel Fusté
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