V4L/DVB (9740): sms1xxx: add USB suspend and hibernation support
This patch provides USB suspend and hibernation support
for Siano's SMS chipset based USB device
Signed-off-by: Uri Shkolnik <uris@siano-ms.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/dvb/siano/smsusb.c b/drivers/media/dvb/siano/smsusb.c
index 87a3c24..5d7ca34 100644
--- a/drivers/media/dvb/siano/smsusb.c
+++ b/drivers/media/dvb/siano/smsusb.c
@@ -432,11 +432,56 @@
smsusb_term_device(intf);
}
+static int smsusb_suspend(struct usb_interface *intf, pm_message_t msg)
+{
+ struct smsusb_device_t *dev =
+ (struct smsusb_device_t *)usb_get_intfdata(intf);
+ printk(KERN_INFO "%s Entering status %d.\n", __func__, msg.event);
+ smsusb_stop_streaming(dev);
+ return 0;
+}
+
+static int smsusb_resume(struct usb_interface *intf)
+{
+ int rc, i;
+ struct smsusb_device_t *dev =
+ (struct smsusb_device_t *)usb_get_intfdata(intf);
+ struct usb_device *udev = interface_to_usbdev(intf);
+
+ printk(KERN_INFO "%s Entering.\n", __func__);
+ usb_clear_halt(udev, usb_rcvbulkpipe(udev, 0x81));
+ usb_clear_halt(udev, usb_rcvbulkpipe(udev, 0x02));
+
+ for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++)
+ printk(KERN_INFO "endpoint %d %02x %02x %d\n", i,
+ intf->cur_altsetting->endpoint[i].desc.bEndpointAddress,
+ intf->cur_altsetting->endpoint[i].desc.bmAttributes,
+ intf->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
+
+ if (intf->num_altsetting > 0) {
+ rc = usb_set_interface(udev,
+ intf->cur_altsetting->desc.
+ bInterfaceNumber, 0);
+ if (rc < 0) {
+ printk(KERN_INFO
+ "%s usb_set_interface failed, rc %d\n",
+ __func__, rc);
+ return rc;
+ }
+ }
+
+ smsusb_start_streaming(dev);
+ return 0;
+}
+
static struct usb_driver smsusb_driver = {
.name = "sms1xxx",
.probe = smsusb_probe,
.disconnect = smsusb_disconnect,
.id_table = smsusb_id_table,
+
+ .suspend = smsusb_suspend,
+ .resume = smsusb_resume,
};
int smsusb_register(void)