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Date: Wed, 8 May 2024 09:39:41 +0100
From: Richard Hughes <hughsient@...il.com>
To: Mark Brown <broonie@...nel.org>
Cc: Dmitry Torokhov <dmitry.torokhov@...il.com>, Jeff LaBundy <jeff@...undy.com>, 
	Hans de Goede <hdegoede@...hat.com>, Charles Wang <charles.goodix@...il.com>, hadess@...ess.net, 
	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org, 
	neil.armstrong@...aro.org
Subject: Re: [PATCH] Input: goodix-berlin - Add sysfs interface for reading
 and writing touch IC registers

On Wed, 8 May 2024 at 03:37, Mark Brown <broonie@...nel.org> wrote:
> The other model I've seen used BTW is to expose a MTD device, if the
> device actually looks like a MTD device (perhaps even is just a flash
> that's fairly directly exposed) that minimises the kernel code quite
> well.

If it helps, fwupd already uses mtd for other devices too, although at
the moment we're using it only for system firmware -- e.g. intel-spi
style. The MTD subsystem doesn't give fwupd much info about the
{removable} device itself, and that can pose a problem unless you
start using heuristics about the parent device to match firmware to
the mtd device.

Richard.

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