linux-kernel - Re: [PATCH] option: Do not try to bind to ADB interfaces

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Date:   Wed, 29 Aug 2018 09:56:10 +0200
From:   Johan Hovold <johan@...nel.org>
To:     Bjørn Mork <bjorn@...k.no>
Cc:     Johan Hovold <johan@...nel.org>,
        Romain Izard <romain.izard.pro@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-usb@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
        stable <stable@...r.kernel.org>, Lars Melin <larsm17@...il.com>
Subject: Re: [PATCH] option: Do not try to bind to ADB interfaces

On Mon, Aug 27, 2018 at 06:15:52PM +0200, Bjørn Mork wrote:
> Johan Hovold <johan@...nel.org> writes:
> 
> > It would allow for simpler device-id entries, at least when ADB is the
> > only blacklisted interface, and may enable ADB for some older entries.
> >
> > On the other hand, interface class 0xff is indeed supposed to be vendor
> > specific as Lars and Greg pointed out, and with status quo we don't
> > cause any regressions. If ADB isn't currently available for some device
> > due to option binding to that interface, we'll just blacklist it as soon
> > we get a report.
> >
> > So personally I'm not sure it's worth it, but I don't have a strong
> > opinion on the matter either.
> 
> +1
> 
> The adb userspace application is also free to unbind any conflicting
> driver, so I don't think blacklisting is strictly necessary.  Except to
> prevent any confusion caused by bogus ttyUSBx devices.

Right. Let's leave things as they are then.

Thanks,
Johan