Message-ID: <4B1E3727.9090106@redhat.com>
Date: Tue, 08 Dec 2009 09:23:19 -0200
From: Mauro Carvalho Chehab <mchehab@redhat.com>
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To: Jon Smirl <jonsmirl@gmail.com>
CC: Dmitry Torokhov <dmitry.torokhov@gmail.com>,
       Krzysztof Halasa <khc@pm.waw.pl>,
       hermann pitton <hermann-pitton@arcor.de>,
       Christoph Bartelmus <lirc@bartelmus.de>, awalls@radix.net, j@jannau.net,
       jarod@redhat.com, jarod@wilsonet.com, kraxel@redhat.com,
       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?
References: <20091204220708.GD25669@core.coreip.homeip.net> <BEJgSGGXqgB@lirc>	 <9e4733910912041628g5bedc9d2jbee3b0861aeb5511@mail.gmail.com>	 <1260070593.3236.6.camel@pc07.localdom.local>	 <20091206065512.GA14651@core.coreip.homeip.net>	 <4B1B99A5.2080903@redhat.com> <m3638k6lju.fsf@intrepid.localdomain>	 <9e4733910912060952h4aad49dake8e8486acb6566bc@mail.gmail.com>	 <m3skbn6dv1.fsf@intrepid.localdomain>	 <20091207184153.GD998@core.coreip.homeip.net> <9e4733910912071644y234beebepd426f9f5760507ce@mail.gmail.com>
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Jon Smirl wrote:
> On Mon, Dec 7, 2009 at 1:41 PM, Dmitry Torokhov
> <dmitry.torokhov@gmail.com> wrote:
>> That is why I think we should go the other way around - introduce the
>> core which receivers could plug into and decoder framework and once it
>> is ready register lirc-dev as one of the available decoders.
> 
> The core needs to allow for RF remotes too.
> 
> -Bluetooth remotes are already in kernel somehow, I don't know how they work,
> -RF4CE, the 802.15.4 stack has been recently merged, the remotes use a
> protocol on top of that. These remotes will hit the consumer market
> next year. Sony, Panasonic and other big names are behind this.
> -Zwave, the Harmony remotes use Zwave. There is no Zwave support in
> the kernel that I am aware of. Zwave is proprietary.
> 
> After these protocols are decoded you end up with scancodes. The
> scancodes need to get injected into input somehow and then flow
> through the mapping process. Decoding down to the scancodes probably
> happens over in the networking code.
> 
> After an in-kernel IR decoder runs it needs to hand off the scancodes
> into the input subsystem. This same API can be used by the networking
> code to hand off RF scancodes.
> 

Yes, the same core should be able to work with non infra red remotes, but, depending
on how the device is implemented.

Cheers,
Mauro.
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