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Diffstat (limited to 'include/linux/usb/hcd.h')
-rw-r--r--include/linux/usb/hcd.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index bbb946437070..7f855d50cdf5 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -344,6 +344,15 @@ struct hc_driver {
*/
int (*update_device)(struct usb_hcd *, struct usb_device *);
int (*set_usb2_hw_lpm)(struct usb_hcd *, struct usb_device *, int);
+ /* USB 3.0 Link Power Management */
+ /* Returns the USB3 hub-encoded value for the U1/U2 timeout. */
+ int (*enable_usb3_lpm_timeout)(struct usb_hcd *,
+ struct usb_device *, enum usb3_link_state state);
+ /* The xHCI host controller can still fail the command to
+ * disable the LPM timeouts, so this can return an error code.
+ */
+ int (*disable_usb3_lpm_timeout)(struct usb_hcd *,
+ struct usb_device *, enum usb3_link_state state);
};
extern int usb_hcd_link_urb_to_ep(struct usb_hcd *hcd, struct urb *urb);