netdev - Re: [RFC 13/13] USB: Disable hub-initiated LPM for comms devices.

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Date:	Thu, 17 May 2012 19:07:32 +0200
From:	Tilman Schmidt <tilman@...p.cc>
To:	Sarah Sharp <sarah.a.sharp@...ux.intel.com>
CC:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-usb@...r.kernel.org, Alan Stern <stern@...land.harvard.edu>,
	Hansjoerg Lipp <hjlipp@....de>,
	linux-bluetooth@...r.kernel.org,
	gigaset307x-common@...ts.sourceforge.net, netdev@...r.kernel.org,
	linux-wireless@...r.kernel.org, ath9k-devel@...ts.ath9k.org,
	libertas-dev@...ts.infradead.org, users@...x00.serialmonkey.com
Subject: Re: [RFC 13/13] USB: Disable hub-initiated LPM for comms devices.

Am 16.05.2012 23:55, schrieb Sarah Sharp:
> Set the disable_hub_initiated_lpm flag for for all USB communications
> drivers.  I know there aren't currently any USB 3.0 devices that
> implement these class specifications, but we should be ready if they do.

I follow the argument for class drivers. But this patch also
modifies drivers for specific existing USB 2.0 only devices
which are unlikely to ever grow USB 3.0 support, such as the
Gigaset ISDN driver:

>  drivers/isdn/gigaset/bas-gigaset.c            |    1 +
>  drivers/isdn/gigaset/usb-gigaset.c            |    1 +

What is the interest of setting the disable_hub_initiated_lpm
flag for these?

Thanks,
Tilman

-- 
Tilman Schmidt                    E-Mail: tilman@...p.cc
Bonn, Germany
In theory there is no difference between theory and practice.
In practice there is. (Yogi Berra)


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