Re: [linux-usb-devel] error to be returned while suspended

On Thu 2006-10-05 20:43:59, Oliver Neukum wrote:
Am Donnerstag, 5. Oktober 2006 20:24 schrieb Alan Stern:
On Thu, 5 Oct 2006, Oliver Neukum wrote:

Am Donnerstag, 5. Oktober 2006 18:21 schrieb Alan Stern:
Currently we don't have any userspace APIs for such a daemon to use.  The
only existing API is deprecated and will go away soon.

I trust it'll be replaced.

Yes. I think Greg wants to wait until the old API is completely gone.

I doubt it will. There's a potential need.

"potential". OTOH functionality this provides is fairly hard to do, so
you need to be really interested...

[..]
In the general case the idea seems insufficient. If I close my laptop's lid
I want all input devices suspended, whether the corresponding files are
opened or not. In fact, if I have port level power control I might even
want to cut power to them.

That's a separate issue. You were talking about runtime suspend, but
closing the laptop's lid is a system suspend.

Why? If you freeze my batch jobs or make unavailable the servers
running on my laptop I'd be very unhappy.
But I want to make jostling a mouse or other input device safe. Thus
I want them to be suspended without autoresume. We need flexibility.

You are not doing power saving, you are going "ignore input devices
when (condition)". That is useful for other cases, too, like touchpad
should be ignored when user is typing.

This belongs either to input subsystem or to X server...
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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Relevant Pages

  • Re: [linux-usb-devel] error to be returned while suspended
    ... I think Greg wants to wait until the old API is completely gone. ... I want all input devices suspended, ... if I have port level power control I might even ... closing the laptop's lid is a system suspend. ...
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  • Re: [linux-usb-devel] error to be returned while suspended
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