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path: root/drivers/net/irda/irda-usb.c
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Diffstat (limited to 'drivers/net/irda/irda-usb.c')
-rw-r--r--drivers/net/irda/irda-usb.c44
1 files changed, 41 insertions, 3 deletions
diff --git a/drivers/net/irda/irda-usb.c b/drivers/net/irda/irda-usb.c
index 006ba23110db..0c0831c03f64 100644
--- a/drivers/net/irda/irda-usb.c
+++ b/drivers/net/irda/irda-usb.c
@@ -389,7 +389,6 @@ static int irda_usb_hard_xmit(struct sk_buff *skb, struct net_device *netdev)
s32 speed;
s16 xbofs;
int res, mtt;
- int err = 1; /* Failed */
IRDA_DEBUG(4, "%s() on %s\n", __func__, netdev->name);
@@ -430,7 +429,6 @@ static int irda_usb_hard_xmit(struct sk_buff *skb, struct net_device *netdev)
irda_usb_change_speed_xbofs(self);
netdev->trans_start = jiffies;
/* Will netif_wake_queue() in callback */
- err = 0; /* No error */
goto drop;
}
}
@@ -542,7 +540,7 @@ drop:
/* Drop silently the skb and exit */
dev_kfree_skb(skb);
spin_unlock_irqrestore(&self->lock, flags);
- return err; /* Usually 1 */
+ return NETDEV_TX_OK;
}
/*------------------------------------------------------------------*/
@@ -1859,6 +1857,42 @@ static void irda_usb_disconnect(struct usb_interface *intf)
IRDA_DEBUG(0, "%s(), USB IrDA Disconnected\n", __func__);
}
+#ifdef CONFIG_PM
+/* USB suspend, so power off the transmitter/receiver */
+static int irda_usb_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ struct irda_usb_cb *self = usb_get_intfdata(intf);
+ int i;
+
+ netif_device_detach(self->netdev);
+
+ if (self->tx_urb != NULL)
+ usb_kill_urb(self->tx_urb);
+ if (self->speed_urb != NULL)
+ usb_kill_urb(self->speed_urb);
+ for (i = 0; i < self->max_rx_urb; i++) {
+ if (self->rx_urb[i] != NULL)
+ usb_kill_urb(self->rx_urb[i]);
+ }
+ return 0;
+}
+
+/* Coming out of suspend, so reset hardware */
+static int irda_usb_resume(struct usb_interface *intf)
+{
+ struct irda_usb_cb *self = usb_get_intfdata(intf);
+ int i;
+
+ for (i = 0; i < self->max_rx_urb; i++) {
+ if (self->rx_urb[i] != NULL)
+ usb_submit_urb(self->rx_urb[i], GFP_KERNEL);
+ }
+
+ netif_device_attach(self->netdev);
+ return 0;
+}
+#endif
+
/*------------------------------------------------------------------*/
/*
* USB device callbacks
@@ -1868,6 +1902,10 @@ static struct usb_driver irda_driver = {
.probe = irda_usb_probe,
.disconnect = irda_usb_disconnect,
.id_table = dongles,
+#ifdef CONFIG_PM
+ .suspend = irda_usb_suspend,
+ .resume = irda_usb_resume,
+#endif
};
/************************* MODULE CALLBACKS *************************/