Commit 2f56c34b authored Nov 22, 2008 by Uri Shkolnik Committed by Mauro Carvalho Chehab Dec 29, 2008

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>

parent 7b29e10d

drivers/media/dvb/siano/smsusb.c

+45 −0

Original line number	Diff line number	Diff line
		@@ -432,11 +432,56 @@ static void smsusb_disconnect(struct usb_interface *intf)
		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)