Messages in this thread Patch in this message | | | From | Ike Panhc <> | Subject | [PATCH] ideapad: depends on backlight subsystem and update comment | Date | Fri, 22 Feb 2013 16:48:40 +0800 |
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I've got a report of build failure on ideapad-laptop, which shows
drivers/built-in.o: In function `ideapad_acpi_notify': ideapad-laptop.c:(.text+0x63876a): undefined reference to `backlight_force_update' drivers/built-in.o: In function `ideapad_acpi_remove': ideapad-laptop.c:(.devexit.text+0x64a7): undefined reference to `backlight_device_unregister' drivers/built-in.o: In function `ideapad_acpi_add': ideapad-laptop.c:(.devinit.text+0x45e28): undefined reference to `backlight_device_register'
To select backlight subsystem can prevent this error from happening.
Also update comment for this driver.
Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Ike Panhc <ike.pan@canonical.com> --- drivers/platform/x86/Kconfig | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index c86bae8..c5bc068 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -291,8 +291,10 @@ config IDEAPAD_LAPTOP depends on RFKILL && INPUT depends on SERIO_I8042 select INPUT_SPARSEKMAP + select BACKLIGHT_CLASS_DEVICE help - This is a driver for the rfkill switches on Lenovo IdeaPad netbooks. + This is a driver for Lenovo IdeaPad netbooks contains drivers for + rfkill switch, hotkey, fan control and backlight control. config THINKPAD_ACPI tristate "ThinkPad ACPI Laptop Extras" -- 1.7.9.5
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