rndis_host: Add link_change function pointer to 'struct rndis_data'.

Callback to signal link state changes from minidriver to
'subminidrivers'.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/net/usb/usbnet.h b/drivers/net/usb/usbnet.h
index 25b63d3339dc..e0501da3dd11 100644
--- a/drivers/net/usb/usbnet.h
+++ b/drivers/net/usb/usbnet.h
@@ -121,6 +121,10 @@ struct driver_info {
          * right after minidriver have initialized hardware. */
         int     (*early_init)(struct usbnet *dev);
 
+        /* called by minidriver when link state changes, state: 0=disconnect,
+         * 1=connect */
+        void    (*link_change)(struct usbnet *dev, int state);
+
         /* for new devices, use the descriptor-reading code instead */
         int             in;             /* rx endpoint */
         int             out;            /* tx endpoint */