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Date: Mon, 6 Jan 2014 18:40:50 -0800
From: Greg KH <gregkh@linuxfoundation.org>
To: =?utf-8?B?5rKI5YWJ?= <shenguang10@gmail.com>
Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com>, linux-usb@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH] usb:hub set hub->change_bits when over-current happens
Message-ID: <20140107024050.GA8903@kroah.com>
References: <CANthSfZij7=q1azM1wrRNDWjFY972zFpe4njBKr3bzUVsm5m-Q@mail.gmail.com>
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On Tue, Jan 07, 2014 at 10:33:14AM +0800, 沈光 wrote:
> set hub->change_bits when we plug in a device which causes
> over-current condition, so that hub_events() will check it.

Why?

What does this solve?  Is this a bug with existing devices that needs to
be backported to older kernels?

thanks,

greg k-h