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USB: EHCI: EHCI 1.1 addendum: Basic LPM feature support

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With this patch, the LPM capable EHCI host controller can put device
into L1 sleep state which is a mode that can enter/exit quickly, and
reduce power consumption.

Signed-off-by: Jacob Pan <jacob.jun.pan@intel.com>
Signed-off-by: Alek Du <alek.du@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Alek Du
2010-06-04 15:47:55 +08:00
committed by Greg Kroah-Hartman
parent aa4d834298
commit 48f2497014
7 changed files with 134 additions and 2 deletions
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4
include/linux/usb/hcd.h
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@@ -300,6 +300,10 @@ struct hc_driver {
int (*update_hub_device)(struct usb_hcd *, struct usb_device *hdev,
struct usb_tt *tt, gfp_t mem_flags);
int (*reset_device)(struct usb_hcd *, struct usb_device *);
/* Notifies the HCD after a device is connected and its
* address is set
*/
int (*update_device)(struct usb_hcd *, struct usb_device *);
};
extern int usb_hcd_link_urb_to_ep(struct usb_hcd *hcd, struct urb *urb);