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authorJosh Boyer <jwboyer@redhat.com>2011-11-02 14:32:00 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-05-12 09:32:21 -0700
commit0b518e8f62e2e1436c6506fd44f13894dc87b281 (patch)
tree38c7f56e225a37e42baaee24e31799b4d3762c0e
parentfecc7cbae16b25401cd6d53dda8fb8fcc1b1ec4f (diff)
sony-laptop: Enable keyboard backlight by default
commit 6fe6ae56a7cebaebc2e6daa11c423e4692f9b592 upstream. When the keyboard backlight support was originally added, the commit said to default it to on with a 10 second timeout. That actually wasn't the case, as the default value is commented out for the kbd_backlight parameter. Because it is a static variable, it gets set to 0 by default without some other form of initialization. However, it seems the function to set the value wasn't actually called immediately, so whatever state the keyboard was in initially would remain. Then commit df410d522410e67660 was introduced during the 2.6.39 timeframe to immediately set whatever value was present (as well as attempt to restore/reset the state on module removal or resume). That seems to have now forced the light off immediately when the module is loaded unless the option kbd_backlight=1 is specified. Let's enable it by default again (for the first time). This should solve https://bugzilla.redhat.com/show_bug.cgi?id=728478 Signed-off-by: Josh Boyer <jwboyer@redhat.com> Acked-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com> Cc: maximilian attems <max@stro.at> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/platform/x86/sony-laptop.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index c006dee5ebfe..40c470507e50 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -127,7 +127,7 @@ MODULE_PARM_DESC(minor,
"default is -1 (automatic)");
#endif
-static int kbd_backlight; /* = 1 */
+static int kbd_backlight = 1;
module_param(kbd_backlight, int, 0444);
MODULE_PARM_DESC(kbd_backlight,
"set this to 0 to disable keyboard backlight, "