aboutsummaryrefslogtreecommitdiff
path: root/drivers/platform
diff options
context:
space:
mode:
authorCorentin Chary <corentincj@iksaif.net>2009-08-28 12:56:47 +0000
committerLen Brown <len.brown@intel.com>2009-08-28 15:21:12 -0400
commitabfa57e15acaa6e1ec567c250e5212bc55d79e43 (patch)
tree381ebd9e3a14f50bec0f31d967f16580140a5274 /drivers/platform
parent1d4a3800c764d111d67462a14589ed1611b2f55e (diff)
asus-laptop: Add *_led_get() functions
Add support for getting led brightness directly from the hardware. Currently we don't need it, but it is needed to support keyboard backlight/led. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/platform')
-rw-r--r--drivers/platform/x86/asus-laptop.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c
index 23449508d86..88cc9a1045b 100644
--- a/drivers/platform/x86/asus-laptop.c
+++ b/drivers/platform/x86/asus-laptop.c
@@ -246,12 +246,15 @@ static struct workqueue_struct *led_workqueue;
#define ASUS_LED(object, ledname) \
static void object##_led_set(struct led_classdev *led_cdev, \
enum led_brightness value); \
+ static enum led_brightness object##_led_get( \
+ struct led_classdev *led_cdev); \
static void object##_led_update(struct work_struct *ignored); \
static int object##_led_wk; \
static DECLARE_WORK(object##_led_work, object##_led_update); \
static struct led_classdev object##_led = { \
.name = "asus::" ledname, \
.brightness_set = object##_led_set, \
+ .brightness_get = object##_led_get, \
}
ASUS_LED(mled, "mail");
@@ -399,6 +402,11 @@ static void write_status(acpi_handle handle, int out, int mask)
{ \
int value = object##_led_wk; \
write_status(object##_set_handle, value, (mask)); \
+ } \
+ static enum led_brightness object##_led_get( \
+ struct led_classdev *led_cdev) \
+ { \
+ return led_cdev->brightness; \
}
ASUS_LED_HANDLER(mled, MLED_ON);