linux-kernel - Re: [PATCH v1] i2c-hid: introduce HID over i2c specification implementation

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Date:	Sat, 6 Oct 2012 23:28:42 +0200 (CEST)
From:	Jiri Kosina <jkosina@...e.cz>
To:	Jean Delvare <khali@...ux-fr.org>
Cc:	Stéphane Chatty <chatty@...c.fr>,
	"benjamin.tissoires" <benjamin.tissoires@...il.com>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Fabien André <fabien.andre@...il.com>,
	劉嘉駿 <scott.liu@....com.tw>,
	Ben Dooks <ben-linux@...ff.org>,
	Wolfram Sang <w.sang@...gutronix.de>,
	linux-i2c@...r.kernel.org, USB list <linux-input@...r.kernel.org>,
	linux-kernel@...r.kernel.org, Marcel Holtmann <marcel@...tmann.org>
Subject: Re: [PATCH v1] i2c-hid: introduce HID over i2c specification 
 implementation

On Sat, 6 Oct 2012, Jiri Kosina wrote:

> > My vote is a clear 3. It took me a few years to kick all users (as
> > opposed to implementers) of i2c from drivers/i2c and finding them a
> > proper home, I'm not going to accept new intruders. Grouping drivers
> > according to what they implement makes it a lot easier to share code
> > and ideas between related drivers. If you want to convince yourself,
> > just imagine the mess it would be if all drivers for PCI devices lived
> > under drivers/pci.
> 
> This is more or less consistent with my original opinion when I was 
> refactoring the HID layer out of the individual drivers a few years ago.
> 
> But Marcel objected that he wants to keep all the bluetooth-related 
> drivers under net/bluetooth, and I didn't really want to push hard against 
> this, because I don't have really super-strong personal preference either 
> way.
> 
> But we definitely can use this oportunity to bring this up for discussion 
> again.

Basically, to me this all boils down to the question -- what is more 
important: low-level transport being used, or the general function of the 
device?

To me, it's the latter, and as such, everything would belong under 
drivers/hid.

On the other hand, I believe the Marcel will be arguing the bluetooth 
devices are actually network devices, and he has got a point as well (even 
though I personally consider bluetooth keyboard to be much more HID device 
than network device).

-- 
Jiri Kosina
SUSE Labs
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