linux-kernel - Re: [PATCH] USB: remove CONFIG_USB

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Message-ID: <1404291956.12021.23.camel@x220>
Date:	Wed, 02 Jul 2014 11:05:56 +0200
From:	Paul Bolle <pebolle@...cali.nl>
To:	Alan Stern <stern@...land.harvard.edu>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Randy Dunlap <rdunlap@...radead.org>,
	linux-usb@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] USB: remove CONFIG_USB_PERSIST from Documentation

On Tue, 2014-06-24 at 13:19 -0400, Alan Stern wrote:
> On Tue, 24 Jun 2014, Paul Bolle wrote:
> > On Tue, 2014-06-24 at 10:25 -0400, Alan Stern wrote:
> > > Also, that "Later kernels" thing has already arrived.  I believe it was 
> > > implemented in 2.6.35.
> > 
> > How does the kernel currently call the disconnect method? I can't yet
> > say for sure, and it seems silly to send a v2 dropping those lines
> > without actually knowing why they can be dropped.
> 
> In drivers/usb/core/driver.c:usb_resume_complete(), which is called 
> during the final "complete" phase of system suspend, interfaces that 
> were marked for rebinding (because their drivers didn't have proper PM 
> support) get rebound.
> 
> Is that what you wanted to know?

I haven't yet discovered what the link is between rebinding and the
"disconnect" method. I'll have to study that. This is far from urgent,
so that might take me quite some time.

Thanks anyway,


Paul Bolle

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