tree b452edcee12a9435464b42688de2fc5ac2003a17
parent 22c6d93a73105fddd58796d7cb10f5f90ee2a338
author Patrick Boettcher <[EMAIL PROTECTED]> Fri, 08 Jul 2005 07:58:11 -0700
committer Linus Torvalds <[EMAIL PROTECTED]> Fri, 08 Jul 2005 08:23:59 -0700

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

Add module parameter to deactive remote control polling.

Signed-off-by: Patrick Boettcher <[EMAIL PROTECTED]>
Signed-off-by: Johannes Stezenbach <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>

 drivers/media/dvb/dvb-usb/dvb-usb-common.h |    1 +
 drivers/media/dvb/dvb-usb/dvb-usb-init.c   |    4 ++++
 drivers/media/dvb/dvb-usb/dvb-usb-remote.c |    8 +++++++-
 3 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/media/dvb/dvb-usb/dvb-usb-common.h 
b/drivers/media/dvb/dvb-usb/dvb-usb-common.h
--- a/drivers/media/dvb/dvb-usb/dvb-usb-common.h
+++ b/drivers/media/dvb/dvb-usb/dvb-usb-common.h
@@ -12,6 +12,7 @@
 #include "dvb-usb.h"
 
 extern int dvb_usb_debug;
+extern int dvb_usb_disable_rc_polling;
 
 #define deb_info(args...) dprintk(dvb_usb_debug,0x01,args)
 #define deb_xfer(args...) dprintk(dvb_usb_debug,0x02,args)
diff --git a/drivers/media/dvb/dvb-usb/dvb-usb-init.c 
b/drivers/media/dvb/dvb-usb/dvb-usb-init.c
--- a/drivers/media/dvb/dvb-usb/dvb-usb-init.c
+++ b/drivers/media/dvb/dvb-usb/dvb-usb-init.c
@@ -18,6 +18,10 @@ int dvb_usb_debug;
 module_param_named(debug,dvb_usb_debug, int, 0644);
 MODULE_PARM_DESC(debug, "set debugging level 
(1=info,xfer=2,pll=4,ts=8,err=16,rc=32,fw=64 (or-able))." DVB_USB_DEBUG_STATUS);
 
+int dvb_usb_disable_rc_polling;
+module_param_named(disable_rc_polling, dvb_usb_disable_rc_polling, int, 0644);
+MODULE_PARM_DESC(disable_rc_polling, "disable remote control polling (default: 
0).");
+
 /* general initialization functions */
 int dvb_usb_exit(struct dvb_usb_device *d)
 {
diff --git a/drivers/media/dvb/dvb-usb/dvb-usb-remote.c 
b/drivers/media/dvb/dvb-usb/dvb-usb-remote.c
--- 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(
        /* 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.*/
-
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