Re: [GIT PATCH] USB autosuspend fixes for 2.6.23-rc6

On Thu, Sep 13, 2007 at 12:07:15PM -0400, Alan Stern wrote:
> You _can't_ change the autosuspend setting for a device that hasn't yet
> been detected; you can only do it after detection.  But you _can_
> modify a whitelist either before or after a device is detected; any
> such modifications won't affect the already-existing devices.

Exactly.  The kernel will by default get the device up and working.  Any
capabilities to be changed after it is working can be done by userspace
with a "whitelist" type program that can properly tell the kernel that
this specific device can be safely suspended.

If you decide to do this in a small bash script, or in
HAL/udevd/DeviceKit/whatever, it all doesn't matter to the kernel.

thanks,

greg k-h

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