Thread (2 messages) 2 messages, 2 authors, 2008-07-01

Re: [rft]power management for usbtouch

From: Alan Stern <stern@rowland.harvard.edu>
Date: 2008-07-01 19:03:12

Possibly related (same subject, not in this thread)

On Tue, 1 Jul 2008, Ville Syrjälä wrote:
quoted
quoted
That is the thing with the forced suspend - it leaves device out of
sync with the rest of the system. If user really does not want to use
the device it should probably be completely disconnected?
Yes, therefore I suggested doing the logical disconnect.
Would the persistence flag affect this? That is would the forced
suspend cause a reset_resume instead if the driver supports it?
There are only two reasons why a reset-resume might occur:

	A normal resume couldn't be carried out (for example, if
	the USB host controller had to be reset) or failed;

	The RESET_RESUME quirk flag is set for the device.

The first reason doesn't apply if the usb_persist flag isn't set, but 
the second reason does.

Alan Stern

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