Commit e13f9318 authored by Tadashi Abe's avatar Tadashi Abe Committed by David S. Miller
Browse files

irda-usb: suspend/resume support 



This patch adds power management suspend/resume hooks for irda-usb.

Signed-off-by: default avatarTadashi Abe <tabe@mvista.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent cd39c7a5

drivers/net/irda/irda-usb.c

+40 −0
Original line number Diff line number Diff line
@@ -1859,6 +1859,42 @@ 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 +1904,10 @@ 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 *************************/