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Date: Mon, 12 Nov 2007 10:55:35 +0100 (CET) From: Tilman Schmidt <tilman@...p.cc> To: Alan Stern <stern@...land.harvard.edu>, Greg Kroah-Hartman <gregkh@...e.de>, Andrew Morton <akpm@...ux-foundation.org>, linux-usb-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org Subject: [PATCH] USB: power-management.txt - disconnect clarification From: Tilman Schmidt <tilman@...p.cc> Add a paragraph to Documentation/usb/power-management.txt about the interaction between suspend and disconnect. Signed-off-by: Tilman Schmidt <tilman@...p.cc> --- --- linux-2.6/Documentation/usb/power-management.txt 2007-10-14 00:41:08.000000000 +0200 +++ linux-2.6.24-rc2-work/Documentation/usb/power-management.txt 2007-11-12 10:27:30.000000000 +0100 @@ -278,6 +278,12 @@ (although the interfaces will be in the same altsettings as before the suspend). +If the device is disconnected or powered down while it is suspended, +the disconnect method will be called instead of the resume or +reset_resume method. This will also happen if the system is resumed +from hibernation, as the device could have been disconnected without +the system being able to detect it. + The reset_resume method is used by the USB Persist facility (see Documentation/usb/persist.txt) and it can also be used under certain circumstances when CONFIG_USB_PERSIST is not enabled. Currently, if a - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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