usbnet & cdc-ether: Autosuspend for online devices
Using remote wakeup and delayed transmission to allow
online device to go into usb autosuspend.
Minimal alternate support for devices that don't support
remote wakeup.
Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/usb/usbnet.h b/include/linux/usb/usbnet.h
index 8c84881..8ce6135 100644
--- a/include/linux/usb/usbnet.h
+++ b/include/linux/usb/usbnet.h
@@ -55,6 +55,7 @@
struct sk_buff_head done;
struct sk_buff_head rxq_pause;
struct urb *interrupt;
+ struct usb_anchor deferred;
struct tasklet_struct bh;
struct work_struct kevent;
@@ -65,6 +66,8 @@
# define EVENT_STS_SPLIT 3
# define EVENT_LINK_RESET 4
# define EVENT_RX_PAUSED 5
+# define EVENT_DEV_WAKING 6
+# define EVENT_DEV_ASLEEP 7
};
static inline struct usb_driver *driver_of(struct usb_interface *intf)
@@ -109,6 +112,9 @@
/* see if peer is connected ... can sleep */
int (*check_connect)(struct usbnet *);
+ /* (dis)activate runtime power management */
+ int (*manage_power)(struct usbnet *, int);
+
/* for status polling */
void (*status)(struct usbnet *, struct urb *);