lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite for Android: free password hash cracker in your pocket
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Date:	Sun, 23 Dec 2012 18:21:18 +0100
From:	Roland Stigge <stigge@...com.de>
To:	gregkh@...uxfoundation.org, corentin.chary@...il.com,
	mjg@...hat.com, platform-driver-x86@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc:	Roland Stigge <stigge@...com.de>
Subject: [PATCH] samsung-laptop: Set keyboard backlight initially

After boot, /sys/devices/platform/samsung/leds/samsung::kbd_backlight/brightness
shows the maximum value (8) by readout, but the led is off. I need to manually
set it to the respective value to have keyboard backlight.

Fixing via readout-write in samsung_leds_init().

Tested on Samsung NP900X3C.

Signed-off-by: Roland Stigge <stigge@...com.de>
--

I'm encountering a similar issue after suspend/resume (led is off). Still
wondering if and by which technique I should add a respective .resume() because
the driver currently doesn't have pm support and also doesn't register as a
driver. Any hint appreciated.

Thanks in advance!

diff --git a/drivers/platform/x86/samsung-laptop.c b/drivers/platform/x86/samsung-laptop.c
index dd90d15..1d3292c 100644
--- a/drivers/platform/x86/samsung-laptop.c
+++ b/drivers/platform/x86/samsung-laptop.c
@@ -1053,6 +1053,7 @@ static int __init samsung_leds_init(struct samsung_laptop *samsung)
 
 		ret = led_classdev_register(&samsung->platform_device->dev,
 					   &samsung->kbd_led);
+		kbd_led_set(&samsung->kbd_led, kbd_led_get(&samsung->kbd_led));
 	}
 
 	if (ret)
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists