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authorAlan Stern <stern@rowland.harvard.edu>2008-04-14 12:17:10 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2008-04-24 21:16:53 -0700
commit58a97ffeb2297f154659f339d77eb3f32c4d8b3e (patch)
tree2ca171b7f720769007f9c9624b74ca4ad3442f02 /drivers/usb/core/driver.c
parentb950bdbc67041412cb042e404938667204c7902c (diff)
USB: HCDs use the do_remote_wakeup flag
When a USB device is suspended, whether or not it is enabled for remote wakeup depends on the device_may_wakeup() setting. The setting is then saved in the do_remote_wakeup flag. Later on, however, the device_may_wakeup() value can change because of user activity. So when testing whether a suspended device is or should be enabled for remote wakeup, we should always test do_remote_wakeup instead of device_may_wakeup(). This patch (as1076) makes that change for root hubs in several places. The patch also adjusts uhci-hcd so that when an autostopped controller is suspended, the remote wakeup setting agrees with the value recorded in the root hub's do_remote_wakeup flag. And the patch adjusts ehci-hcd so that wakeup events on selectively suspended ports (i.e., the bus itself isn't suspended) don't turn on the PME# wakeup signal. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/core/driver.c')
-rw-r--r--drivers/usb/core/driver.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index 2ea333a43d6..edc31e13e95 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -932,7 +932,6 @@ static int autosuspend_check(struct usb_device *udev, int reschedule)
* is disabled. Also fail if any interfaces require remote wakeup
* but it isn't available.
*/
- udev->do_remote_wakeup = device_may_wakeup(&udev->dev);
if (udev->pm_usage_cnt > 0)
return -EBUSY;
if (udev->autosuspend_delay < 0 || udev->autosuspend_disabled)