[PATCH 0/4] USB: autosuspend management

Greg:

Experience with 2.6.20 has shown that there is some buggy USB equipment
out there which doesn't like to be suspended and resumed.  This means that
users need a way to manage the newly-added autosuspend/autoresume
facilities.  At the very least, it has to be possible to prevent certain
devices from automatically being suspended when they aren't in use.

That's what this series of patches addresses.  It contains the least 
experimental parts of the changes Oliver and I have been working on.  
The main additions are:

	The default autosuspend time delay is now configurable as
	a usbcore module parameter.  This is the only way to affect
	what happens at boot time, when the system is very busy
	running startup scripts, and autosuspend timers may expire
	before any site-specific user programs get a chance to run.

	The actual autosuspend delay is now stored as a per-device
	value rather than a hard 2-second delay for everything, and
	it is exposed in sysfs.  This will allow users to tailor the 
	delays and even disable autosuspend for individual devices.

Given that people are already starting to have trouble in 2.6.20, I think 
it would be good if these four patches could get into 2.6.21.

Alan Stern


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