[linux-usb-devel] converting appletouch to usb autosuspend...

[linux-usb-devel] converting appletouch to usb autosuspend...

Post by Alan Ster » Mon, 14 May 2007 05:00:14



One has to add appropriate calls to usb_autopm_get_interface() and
usb_autopm_put_interface(), or equally well, to usb_autopm_enable() and
usb_autopm_disable(). One might also need to set
intf->needs_remote_wakeup to 1 in the probe routine.


They would use less power if the UHCI host controller were suspended.
But obviously it cannot be suspended while devices attached to it (such as
the USB keyboard and the appletouch device) remain active.

Alan Stern

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[linux-usb-devel] converting appletouch to usb autosuspend...

Post by Jiri Kosin » Mon, 14 May 2007 06:50:09


A sidenote for completness, when this has been mentioned: Oliver has been
working on autosuspend support for HID devices, he sent me some (yet
incomplete) patches some time ago. So autosuspending of USB
keyboards/mice/etc. is being worked on.

Oliver, do you have any update please?

Thanks,

--
Jiri Kosina
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[linux-usb-devel] converting appletouch to usb autosuspend...

Post by Oliver Neu » Tue, 15 May 2007 16:40:12

Am Samstag, 12. Mai 2007 23:40 schrieb Jiri Kosina:

Not yet. You can have them tomorrow.

Regards
Oliver
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