netdev - Re: [PATCH 2/2 v4] sierra_net: keep status interrupt URB active

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Message-ID: <4314218.JnQ2dxn9CI@linux-5eaq.site>
Date:	Wed, 10 Apr 2013 17:01:26 +0200
From:	Oliver Neukum <oliver@...kum.org>
To:	Dan Williams <dcbw@...hat.com>
Cc:	Ming Lei <tom.leiming@...il.com>,
	Elina Pasheva <epasheva@...rrawireless.com>,
	Network Development <netdev@...r.kernel.org>,
	linux-usb <linux-usb@...r.kernel.org>,
	Rory Filer <rfiler@...rrawireless.com>,
	Phil Sutter <phil@....cc>
Subject: Re: [PATCH 2/2 v4] sierra_net: keep status interrupt URB active

On Wednesday 10 April 2013 09:57:50 Dan Williams wrote:
> On Wed, 2013-04-10 at 09:15 +0200, Oliver Neukum wrote:
> > On Tuesday 09 April 2013 18:05:51 Dan Williams wrote:
> > > The driver and firmware sync up through SYNC messages, and the
> > > firmware's affirmative reply to these SYNC messages appears to be the
> > > "Reset" indication received via the status interrupt endpoint.  Thus the
> > > driver needs the status interrupt endpoint always active so that the
> > > Reset indication can be received even if the netdev is closed, which is
> > > the case right after device insertion.
> > 
> > WHat about suspend/resume?
> 
> usbnet should take care of that transparently from the sub-drivers
> through it's own suspend/resume logic to kill/resubmit the URB if
> required.  Though is there something I'm missing here?

Sorry, I read mails in antichronological order.

	Regards
		Oliver

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