V4L/DVB (7045): xc5000: Small amount of cleanup and commenting
xc5000: Small amount of cleanup and commenting, just for clarification.
Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/dvb/frontends/xc5000.h b/drivers/media/dvb/frontends/xc5000.h
index 85b2d43..e0e8456 100644
--- a/drivers/media/dvb/frontends/xc5000.h
+++ b/drivers/media/dvb/frontends/xc5000.h
@@ -30,8 +30,16 @@
struct xc5000_config {
u8 i2c_address;
u32 if_khz;
- void *video_dev;
- int (*tuner_callback) (void *dev, int command, int arg);
+
+ /* For each bridge framework, when it attaches either analog or digital,
+ * it has to store a reference back to its _core equivalent structure,
+ * so that it can service the hardware by steering gpio's etc.
+ * Each bridge implementation is different so cast priv accordingly.
+ * The xc5000 driver cares not for this value, other than ensuring
+ * it's passed back to a bridge during tuner_callback().
+ */
+ void *priv;
+ int (*tuner_callback) (void *priv, int command, int arg);
};
/* xc5000 callback command */