linux-kernel - Re: usb hid: reset NumLock

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Message-Id: <20070330125437.b3229471.zaitcev@redhat.com>
Date:	Fri, 30 Mar 2007 12:54:37 -0700
From:	Pete Zaitcev <zaitcev@...hat.com>
To:	"Dmitry Torokhov" <dmitry.torokhov@...il.com>
Cc:	"Jiri Kosina" <jkosina@...e.cz>,
	linux-usb-devel@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org, stuart_hayes@...l.com,
	zaitcev@...hat.com
Subject: Re: usb hid: reset NumLock

On Fri, 30 Mar 2007 14:14:20 -0400, "Dmitry Torokhov" <dmitry.torokhov@...il.com> wrote:

> > I didn't like a) layering violation, and b) that they defeat filtering
> > unconditionally. Why have any filtering then?
> >
> > Instead, I propose for USB HID driver to reset NumLock on probe. Like this:
> >
> > --- a/drivers/usb/input/hid-core.c

> This is fine and that's what we do in atkbd probe but maybe we should
> move that in input core and reset leds as part of
> input_register_device()?

Sure, as long as it works. I think (as much as I understand), that we
already attempt to do this indirectly. input_register_device invokes
->start handlers, and the kbd_start attempts to reset LEDs, but fails
because of the state filtering.

-- Pete
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