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authorAlan Stern <stern@rowland.harvard.edu>2005-11-14 11:45:38 -0500
committerGreg Kroah-Hartman <gregkh@suse.de>2006-01-04 13:48:31 -0800
commit1c50c317e2e7f15427149cbc216a63366468710e (patch)
treed48dc0b03090e89c644f73f9997b4f70b6ec9b41 /drivers/usb/host/uhci-hcd.c
parent8364d6b0be2dbbf162c6aea79615b5025a0d67c2 (diff)
[PATCH] USB: central handling for host controllers that were reset during suspend/resume
This patch (as515b) adds a routine to usbcore to simplify handling of host controllers that lost power or were reset during suspend/resume. The new core routine marks all the child devices of the root hub as NOTATTACHED and tells khubd to disconnect the device structures as soon as possible. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/uhci-hcd.c')
-rw-r--r--drivers/usb/host/uhci-hcd.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
index 1c0394cb3c8..071fab6b647 100644
--- a/drivers/usb/host/uhci-hcd.c
+++ b/drivers/usb/host/uhci-hcd.c
@@ -748,8 +748,12 @@ static int uhci_resume(struct usb_hcd *hcd)
check_and_reset_hc(uhci);
configure_hc(uhci);
- if (uhci->rh_state == UHCI_RH_RESET)
+ if (uhci->rh_state == UHCI_RH_RESET) {
+
+ /* The controller had to be reset */
+ usb_root_hub_lost_power(hcd->self.root_hub);
suspend_rh(uhci, UHCI_RH_SUSPENDED);
+ }
spin_unlock_irq(&uhci->lock);