On Tue, 2007-02-20 at 01:08 +0100, Adrian Bunk wrote:
> CONFIG_BACKLIGHT_CLASS_DEVICE=y, CONFIG_SYSFS=n results int he
> following compile error:
> ...
> LD .tmp_vmlinux1
> drivers/built-in.o: In function `nvidia_bl_exit':
> (.text+0x27d01): undefined reference to `backlight_device_unregister'
> drivers/built-in.o: In function `nvidia_bl_init':
> (.text+0x27e3c): undefined reference to `backlight_device_register'
I've added the patch below to the git backlight tree to resolve this.
Cheers,
Richard
backlight: Remove bogus SYSFS dependency
Remove a bogus SYSFS dependency from the backlight class
Signed-off-by: Richard Purdie <[email protected]>
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index cd2ef0a..f8bc43c 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -4,9 +4,7 @@
menu "Graphics support"
-if SYSFS
- source "drivers/video/backlight/Kconfig"
-endif
+source "drivers/video/backlight/Kconfig"
config FB
tristate "Support for frame buffer devices"
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index 6801edf..1b79a6f 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -12,7 +12,7 @@ fb-objs := $(fb-y)
obj-$(CONFIG_VT) += console/
obj-$(CONFIG_LOGO) += logo/
-obj-$(CONFIG_SYSFS) += backlight/
+obj-y += backlight/
obj-$(CONFIG_FB_CFB_FILLRECT) += cfbfillrect.o
obj-$(CONFIG_FB_CFB_COPYAREA) += cfbcopyarea.o
-
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