linux-kernel - Re: [PATCH] usb:hub set hub->change

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Message-ID: <20140107024050.GA8903@kroah.com>
Date:	Mon, 6 Jan 2014 18:40:50 -0800
From:	Greg KH <gregkh@...uxfoundation.org>
To:	沈光 <shenguang10@...il.com>
Cc:	Sarah Sharp <sarah.a.sharp@...ux.intel.com>,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] usb:hub set hub->change_bits when over-current happens

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
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