Messages in this thread Patch in this message | | | Date | Mon, 26 Feb 2007 13:12:03 -0300 | From | Henrique de Moraes Holschuh <> | Subject | [PATCH] ACPI: ibm-acpi: improve backlight power handling |
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Improve the backlight code to emulate as much as possible the power management events, as we are unable to really power on or power off the backlight.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Cc: Richard Purdie <rpurdie@rpsys.net> ---
Status: waiting ACK from Richard Purdie <rpurdie@rpsys.net>
drivers/acpi/ibm_acpi.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/acpi/ibm_acpi.c b/drivers/acpi/ibm_acpi.c index e7309a6..cb5885e 100644 --- a/drivers/acpi/ibm_acpi.c +++ b/drivers/acpi/ibm_acpi.c @@ -86,6 +86,7 @@ #include <linux/proc_fs.h> #include <linux/backlight.h> +#include <linux/fb.h> #include <asm/uaccess.h> #include <linux/dmi.h> @@ -1707,7 +1708,8 @@ static int brightness_write(char *buf) static int brightness_update_status(struct backlight_device *bd) { - return brightness_set(bd->props.brightness); + return brightness_set((bd->props.fb_blank == FB_BLANK_UNBLANK)? + bd->props.brightness : 0); } static struct backlight_ops ibm_backlight_data = { -- 1.5.0.1 -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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