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Date:	Tue, 3 Dec 2013 08:53:46 +0100 (CET)
From:	Jiri Kosina <jkosina@...e.cz>
To:	Olivier Gay <ogay@...itech.com>
Cc:	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
	Nestor Lopez Casado <nlopezcasad@...itech.com>,
	Mathieu Meisser <mmeisser@...itech.com>
Subject: Re: [PATCH] HID: logitech-dj: add HIDRAW dependency in Kconfig

On Tue, 3 Dec 2013, Olivier Gay wrote:

> hid-logitech-dj.c driver needs hidraw to work correctly. Without
> hidraw, hid-logitech-dj.c fails during probe() and Logitech
> Unifying devices HID reports aren't recognized.
> 
> Signed-off-by: Olivier Gay <ogay@...itech.com>
> Signed-off-by: Nestor Lopez Casado <nlopezcasad@...itech.com>
> Signed-off-by: Mathieu Meisser <mmeisser@...itech.com>
> ---
> 
> Hi everyone,
> 
> this adds a HIDRAW dependency in Kconfig for hid-logitech-dj.c
> driver. The driver uses hidraw and needs it to work correctly.
> 
> Without hidraw if a Logitech Unifying device is plugged, the driver
> fails during probe() and Logitech Unifying devices HID reports aren't
> recognized. This has been the cause of some confusion. Some Linux and
> Android distributions had HID_LOGITECH_DJ enabled without HIDRAW and
> the Unifying mice and keyboards would simply not work (no cursor

Hi Oliver,

I don't have my receiver with me at the moment, so can't really verify -- 
how exactly does it fail during probe()?

It's clear that without hidraw it's not possible to change the pairing 
from userspace, but I fail to see why probing the receiver should be 
affected?

Thanks,

-- 
Jiri Kosina
SUSE Labs
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