Re: [PATCH 1/2] HID: hid-lg4ff add support for G27 LEDs

From: Jiri Kosina
Date: Tue Mar 13 2012 - 04:23:58 EST


On Mon, 12 Mar 2012, simon@xxxxxxxxxxxxx wrote:

> >> The LEDs on the G27 are very much more specific, mounted on the yoke of
> >> the gaming wheel.
> >
> >> Would this require the use/complexity of the LED subsystem?
> >
> > Well, it'd mean that applications that know how to drive LEDs will be
> > able to use the LEDs on this wheel with less per device knowledge which
> > seems like a useful thing and if someone wants to remap a LED to "new
> > mail" or whatever that'll be easier (nethack has the mailer daemon
> > deliver a scroll of mail!).
>
> I'm not familiar with the LED subsystem, but my concerns would be that
> this would add a whole load of code to implement.

Not really, it's rather simple to use and as Mark said, it's a proper
infrastructure to use here.

We already have HID drivers which are using this -- you can look at
PicoLCD or Wiimote drivers and you'll see that it's indeed fairly simple.

> PS. I don't really care about email when screaming around Laguna Seca ;-)

:))

--
Jiri Kosina
SUSE Labs
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