linux-kernel - Re: [PATCH v4 1/5] gadget: Introduce the notifier functions

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Message-ID: <20151001174308.GL12635@sirena.org.uk>
Date:	Thu, 1 Oct 2015 18:43:08 +0100
From:	Mark Brown <broonie@...nel.org>
To:	Felipe Balbi <balbi@...com>
Cc:	Baolin Wang <baolin.wang@...aro.org>,
	Greg KH <gregkh@...uxfoundation.org>, sre@...nel.org,
	dbaryshkov@...il.com, dwmw2@...radead.org,
	peter.chen@...escale.com, stern@...land.harvard.edu,
	r.baldyga@...sung.com, sojka@...ica.cz,
	yoshihiro.shimoda.uh@...esas.com, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org, sameo@...ux.intel.com,
	lee.jones@...aro.org, ckeepax@...nsource.wolfsonmicro.com,
	patches@...nsource.wolfsonmicro.com, linux-pm@...r.kernel.org,
	device-mainlining@...ts.linuxfoundation.org
Subject: Re: [PATCH v4 1/5] gadget: Introduce the notifier functions

On Thu, Oct 01, 2015 at 12:29:32PM -0500, Felipe Balbi wrote:

> Frankly, I wanted all of this to be decided in userland with the
> kernel just providing notification and basic safety checks (we don't
> want to allow a bogus userspace daemon frying anybody's devices).

What's the advantage of pushing this to userspace?  By the time we
provide enough discoverability to enable userspace to configure itself
it seems like we'd have enough information to do the job anyway.

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