Re: [PATCH] USB: disable autosuspend by default for non-hubs

On Mon, Aug 20, 2007 at 10:48:05AM -0400, Alan Stern wrote:
> This patch (as965) disables autosuspend by default for all USB devices
> other than hubs.  We are seeing too many devices that can't suspend or
> resume properly, the blacklist is growing unreasonably quickly, and
> this sort of thing should be handled in userspace.
> 
> Signed-off-by: Alan Stern <[email protected]>
> 
> ---
> 
> Once this is added there isn't much point in keeping the
> USB_QUIRK_NO_AUTOSUSPEND flag or usbcore's "autosuspend" parameter.
> But one thing at a time.
> 
> It would be a good idea to put this in 2.6.23.  If it turns out not to
> be necessary we can always remove it later; the conservative course for
> now is to avoid breaking lots of devices all at once.

But with a simple config change, those devices are not broken, right?

And right now, no distro is enabling that option, so we are safe for a
bit.

And I really don't want to apply this patch, as it is very broad.

Perhaps the best solution for the autosuspend stuff _is_ to do it in
userspace, but I'm not quite sold on that yet, as that infrastructure is
not in place, nor do we really know how that will look.

So, I'd really like to stick with what we have for now, as imperfict as
it might be, and work on adding suspend support to the different
drivers.

thanks,

greg k-h

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