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DateThu, 13 Sep 2007 16:31:56 -0400 (EDT)
FromAlan Stern <>
SubjectRe: [GIT PATCH] USB autosuspend fixes for 2.6.23-rc6
On Thu, 13 Sep 2007, Adrian Bunk wrote:

> > Maybe you're concerned about propagating updates as painlessly as 
> > possible -- if the whitelist is in the kernel then every kernel release 
> > would include an update.  But in userspace it's possible to do updates 
> > even more quickly and painlessly.  For example, there could be a 
> > network server available for both interactive lookups and automatic 
> > queries from HAL.> >...> > No, what I'm concerned about is that this would require userspace for 
> something that is completely in-kernel.

But it isn't completely in-kernel.  It is policy, and policy belongs in 
userspace.

The kernel provides the mechanism for autosuspending idle devices and 
setting the idle-delay length.  But userspace must be responsible for 
deciding what devices to autosuspend and how long the idle delays 
should be.

Alan Stern

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