Re: [RFC] Should we create a raw input interface for IR's ? - Was:Re: [PATCH 1/3 v2] lirc core device driver infrastructure

From: Gerd Hoffmann
Date: Thu Nov 26 2009 - 04:14:39 EST


On 11/26/09 07:23, Jarod Wilson wrote:
Well, when mythtv was started, I don't know that there were many
input layer remotes around... lirc was definitely around though.

lirc predates the input layer IR drivers by years, maybe even the input layer itself.

The main reason for the input layer IR drivers appearing was lirc not being mainline. A in-kernel driver (bttv in that case) which depends on a out-of-tree subsystem for IR support was simply a pain in the ass for both maintainer (/me back then) and users.

At least for IR hardware which allows access to the raw samples it certainly makes sense to support lirc, additional to the current (or improved) input layer support.

The lirc support in mythtv actually relies on mapping remote button
names as defined in lircd.conf to keyboard key strokes. As mentioned
elsewhere in this beast of a thread, mythtv doesn't currently support
things like KEY_PLAY, KEY_VOLUMEUP, KEY_CHANNELUP, etc. just yet, but
I intend on fixing that...

lircd can handle the input layer as input as well, so you actually can remap things via lircd even for pure input layer drivers. mythtv handling KEY_VOLUMEUP directly would be more elegant though.

cheers,
Gerd

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/