diff options
| author | Tadashi Abe <tabe@mvista.com> | 2009-05-26 00:53:27 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-05-30 09:12:33 +0400 |
| commit | e13f93188b8a3b418da2a02dfa1a46718cf4607b (patch) | |
| tree | 30e1f936cc9a731f16c92bfaa087d824825b2de0 /drivers/net/irda/irda-usb.c | |
| parent | cd39c7a5717191c677a140565bda2f1ca485ecd8 (diff) | |
| download | linux-e13f93188b8a3b418da2a02dfa1a46718cf4607b.tar.xz | |
irda-usb: suspend/resume support
This patch adds power management suspend/resume hooks for irda-usb.
Signed-off-by: Tadashi Abe <tabe@mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/irda/irda-usb.c')
| -rw-r--r-- | drivers/net/irda/irda-usb.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/net/irda/irda-usb.c b/drivers/net/irda/irda-usb.c index 006ba23110db..394b2b17075e 100644 --- a/drivers/net/irda/irda-usb.c +++ b/drivers/net/irda/irda-usb.c @@ -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 *************************/ |