ACPI: ibm-acpi: fix initial status of backlight device
From: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Date: 2007-02-22 14:45:20
Also in:
linux-acpi, lkml
Subsystem:
acpi, the rest · Maintainers:
"Rafael J. Wysocki", Linus Torvalds
The brightness class core does not update the initial status of the device's brightness at register time. Do it by ourselves. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Cc: Richard Purdie <redacted> --- Waiting ACK from Richard Purdie, applies on top of 2.6.21-rc1. Also fixes a whitespace problem. drivers/acpi/ibm_acpi.c | 9 ++++++++- 1 files changed, 8 insertions(+), 1 deletions(-)
diff --git a/drivers/acpi/ibm_acpi.c b/drivers/acpi/ibm_acpi.c
index 4cc534e..c59ebff 100644
--- a/drivers/acpi/ibm_acpi.c
+++ b/drivers/acpi/ibm_acpi.c@@ -1711,6 +1711,12 @@ static struct backlight_ops ibm_backlight_data = { static int brightness_init(void) { + int b; + + b = brightness_get(NULL); + if (b < 0) + return b; + ibm_backlight_device = backlight_device_register("ibm", NULL, NULL, &ibm_backlight_data); if (IS_ERR(ibm_backlight_device)) {
@@ -1718,7 +1724,8 @@ static int brightness_init(void) return PTR_ERR(ibm_backlight_device); } - ibm_backlight_device->props.max_brightness = 7; + ibm_backlight_device->props.max_brightness = 7; + ibm_backlight_device->props.brightness = b; return 0; }
--
1.4.4.4
--
"One disk to rule them all, One disk to find them. One disk to bring
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where the shadows lie." -- The Silicon Valley Tarot
Henrique Holschuh