linux-kernel - Re: [PATCH 2/2] hid-ntrig: calibration

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Date:	Thu, 24 Mar 2011 15:32:00 +0100 (CET)
From:	Jiri Kosina <jkosina@...e.cz>
To:	Henrik Rydberg <rydberg@...omail.se>
Cc:	Rafi Rubin <rafi@...s.upenn.edu>, linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org, micki@...rig.com, chatty@...c.fr,
	dmitry.torokhov@...il.com
Subject: Re: [PATCH 2/2] hid-ntrig: calibration

On Mon, 21 Mar 2011, Henrik Rydberg wrote:

> > Adding a function to tell the device to run its calibration routine.
> > A number written to the sysfs specifies the duration of the calibration
> > in milliseconds
> > 
> > Signed-off-by: Rafi Rubin <rafi@...s.upenn.edu>
> > ---
> 
> This is great functionality, and from what it seems, it works. However, 
> the poking at the usb layer makes me wonder if there is another way... 
> Jiri? Dmitry? Awaiting answers from someone more knowledgeable, please 
> find some comments inline.

Actually, let me put it another way -- is there any reason not to have 
this as a functionality provided by HID core code (with driver registering 
callbacks if they want to provide calibration functionality)?

Thanks,

-- 
Jiri Kosina
SUSE Labs, Novell Inc.
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