From owner-freebsd-usb@freebsd.org  Wed Mar 30 07:14:50 2016
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Subject: Re: libusb permission error (?) when attempting to detach device
 which is not attached
To: Conor <interloper255@gmail.com>, freebsd-usb@freebsd.org
References: <CALodZiBZaO7PoYn6dJmp+hgOGjgn6-QbwbazeBjyUyUPpWVM-A@mail.gmail.com>
 <56FB7C64.5090801@selasky.org>
From: Hans Petter Selasky <hps@selasky.org>
Message-ID: <56FB7D9F.9030300@selasky.org>
Date: Wed, 30 Mar 2016 09:17:51 +0200
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On 03/30/16 09:12, Hans Petter Selasky wrote:
> =====
>    [localrules=10]
>           add path 'ugen*' mode 0660 group operator
>           add path 'usb/*'  mode 0660 group operator
>           add path 'usb' mode 0770 group operator
> ======

This filter is too wide. You should see how 
/usr/ports/multimedia/webcamd does it.

--HPS