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

Pavel Machek
2006-10-06T11:21:16Z

On Thu 2006-10-05 18:35:21, 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.

It does not seem that API was that useful after all.

> > Current thinking is that a driver will suspend its device whenever the
> > device isn't in use.  With usblp, that would be whenever the device file
> > isn't open.  See the example code in usb-skeleton.c.
>
> 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.

I do not see how this is useful.
Pavel

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