Add sysfs device links to dvb devices

From: Andrew de Quincey <adq_dvb@lidskialf.net>

Currently in /sys/class/dvb/dvbX.demuxY/ we have:
dev
uevent

With the patch, we have (for a PCI DVB device):
dev
device -> ../../../devices/pci0000:00/0000:00:1e.0/0000:03:0d.0
uevent

So userspace tools can (finally) work out which physical device a DVB adapter
refers to. Previously you had to kinda look through dmesg and hope that it
hadn't been dumped out of the buffer. This makes debugging a lot easier if
the system has been up for a long time!

This is done by adding an extra 'struct device *' parameter to
dvb_register_adapter(). It will work with any kind of standard
linux 'device'. Additionally, if someone has an embedded system which does
things differently, they can simply supply 'NULL' and the behaviour will be
as before - the link will simply not appear.

Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Ack'd-by: Manu Abraham <manu@linuxtv.org>
Acked-by: Michael Krufky <mkrufky@linuxtv.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/linux/drivers/media/dvb/dvb-usb/dvb-usb-dvb.c b/linux/drivers/media/dvb/dvb-usb/dvb-usb-dvb.c
index 6fa921002..500896d02 100644
--- a/linux/drivers/media/dvb/dvb-usb/dvb-usb-dvb.c
+++ b/linux/drivers/media/dvb/dvb-usb/dvb-usb-dvb.c
@@ -82,7 +82,7 @@ int dvb_usb_dvb_init(struct dvb_usb_device *d)
 	int ret;
 
 	if ((ret = dvb_register_adapter(&d->dvb_adap, d->desc->name,
-			d->owner)) < 0) {
+			d->owner, &d->udev->dev)) < 0) {
 		deb_info("dvb_register_adapter failed: error %d", ret);
 		goto err;
 	}