Am Mittwoch, 7. Februar 2007 18:45 schrieb Alan Stern:
> On Wed, 7 Feb 2007, Oliver Neukum wrote:
> > If the device is not bound to a driver, that is ignored.
>
> Not so. The attribute is checked for every device that gets suspended.
> Of course, the device itself may choose not to report wakeup events. If
> it isn't configured, for instance, it won't report anything.
Sorry I got distracted by this code:
/* Caller has locked udev's pm_mutex */
static int usb_suspend_device(struct usb_device *udev, pm_message_t msg)
{
struct usb_device_driver *udriver;
int status = 0;
if (udev->state == USB_STATE_NOTATTACHED ||
udev->state == USB_STATE_SUSPENDED)
goto done;
/* For devices that don't have a driver, we do a standard suspend. */
if (udev->dev.driver == NULL) {
udev->do_remote_wakeup = 0;
status = usb_port_suspend(udev);
goto done;
}
Regards
Oliver
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