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authorSarah Sharp <sarah.a.sharp@linux.intel.com>2009-12-10 02:59:17 +0300
committerGreg Kroah-Hartman <gregkh@suse.de>2010-03-03 01:53:12 +0300
commita5f0efaba4c2b644e6248648f75b0a8a522359f6 (patch)
tree62b899d29b3089dc2ce2f7037dc43cde34501b4c /drivers/usb/host
parent2a8f82c4ceaffcfd64531dbdee1d1bc227387882 (diff)
downloadlinux-a5f0efaba4c2b644e6248648f75b0a8a522359f6.tar.xz
USB: Add call to notify xHC of a device reset.
Add a new host controller driver method, reset_device(), that the USB core will use to notify the host of a successful device reset. The call may fail due to out-of-memory errors; attempt the port reset sequence again if that happens. Update hub_port_init() to allow resetting a configured device. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host')
-rw-r--r--drivers/usb/host/xhci-pci.c1
-rw-r--r--drivers/usb/host/xhci.h1
2 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index e097008d6fb1..417d37aff8d7 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -139,6 +139,7 @@ static const struct hc_driver xhci_pci_hc_driver = {
.reset_bandwidth = xhci_reset_bandwidth,
.address_device = xhci_address_device,
.update_hub_device = xhci_update_hub_device,
+ .reset_device = xhci_reset_device,
/*
* scheduling support
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index feb0101f91eb..741ece482e31 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1270,6 +1270,7 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status);
int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev, struct usb_host_endpoint *ep);
int xhci_drop_endpoint(struct usb_hcd *hcd, struct usb_device *udev, struct usb_host_endpoint *ep);
void xhci_endpoint_reset(struct usb_hcd *hcd, struct usb_host_endpoint *ep);
+int xhci_reset_device(struct usb_hcd *hcd, struct usb_device *udev);
int xhci_check_bandwidth(struct usb_hcd *hcd, struct usb_device *udev);
void xhci_reset_bandwidth(struct usb_hcd *hcd, struct usb_device *udev);