[PATCH] dvb: usb: add module parm to disable remote control polling

Add module parameter to deactive remote control polling.

Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Johannes Stezenbach <js@linuxtv.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 7 insertions, 1 deletions

diff --git a/drivers/media/dvb/dvb-usb/dvb-usb-remote.c b/drivers/media/dvb/dvb-usb/dvb-usb-remote.c
index 9f1e23f82bae..f4038bf21c91 100644
--- a/drivers/media/dvb/dvb-usb/dvb-usb-remote.c
+++ b/drivers/media/dvb/dvb-usb/dvb-usb-remote.c
@@ -21,6 +21,10 @@ static void dvb_usb_read_remote_control(void *data)
         /* TODO: need a lock here.  We can simply skip checking for the remote control
            if we're busy. */
 
+        /* when the parameter has been set to 1 via sysfs while the driver was running */
+        if (dvb_usb_disable_rc_polling)
+                return;
+
         if (d->props.rc_query(d,&event,&state)) {
                 err("error while querying for an remote control event.");
                 goto schedule;
@@ -85,7 +89,9 @@ schedule:
 int dvb_usb_remote_init(struct dvb_usb_device *d)
 {
         int i;
-        if (d->props.rc_key_map == NULL)
+        if (d->props.rc_key_map == NULL ||
+                d->props.rc_query == NULL ||
+                dvb_usb_disable_rc_polling)
                 return 0;
 
         /* Initialise the remote-control structures.*/