Danny Kukawka f70ac0e965 ACPI video: Don't export sysfs backlight interface if query _BCL fail ... Currently the acpi video module export the backlight interface to sysfs also if acpi_video_device_lcd_query_levels() fails to read _BLC method (e.g. because the method is not available). In this case the userspace don't know which brightness level are supported and can't set a brightness level (echo return with: "write error: Invalid Argument"). This happend e.g. on a ASUS RF1 (correct supported by the asus-laptop module). The video module should not export the backlight interface if query _BLC fail, because you can't set anything from userspace and this make it useless. http://bugzilla.kernel.org/show_bug.cgi?id=8375 Signed-off-by: Danny Kukawka <dkukawka@suse.de> Acked-by: Luming Yu <luming.yu@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>		2007-07-03 01:33:53 -04:00
..
dispatcher	ACPICA: fix AML mutex re-entrancy	2007-02-15 16:13:16 -05:00
events	ACPICA: revert "acpi_serialize" changes	2007-03-15 04:10:36 -04:00
executer	ACPICA: revert "acpi_serialize" changes	2007-03-15 04:10:36 -04:00
hardware	ACPI: resolve HP nx6125 S3 immediate wakeup regression	2007-03-12 14:49:26 -04:00
namespace	ACPICA: revert "acpi_serialize" changes	2007-03-15 04:10:36 -04:00
parser	ACPICA: Update copyright to 2007.	2007-02-02 21:14:31 -05:00
resources	ACPI: fix boot hang w/o "noapic" on MSI MS-6390-L	2007-03-08 03:42:42 -05:00
sleep	ACPI wakeup hooks for rtc-cmos	2007-05-08 11:15:18 -07:00
tables	ACPICA: clear fields reserved before FADT r3	2007-04-28 20:55:06 -04:00
utilities	ACPICA: fix AML mutex re-entrancy	2007-02-15 16:13:16 -05:00
ac.c	ACPI: delete extra #defines in /drivers/acpi/ drivers	2007-02-12 23:50:52 -05:00
acpi_memhotplug.c	ACPI: Remove duplicate definitions for _STA bits	2007-04-25 14:17:39 -04:00
asus_acpi.c	backlight: Separate backlight properties from backlight ops pointers	2007-02-20 09:26:53 +00:00
battery.c	Pull bugzilla-7200 into release branch	2007-02-16 22:11:37 -05:00
bay.c	Pull fluff into release branch	2007-02-16 22:10:32 -05:00
blacklist.c	ACPI: make blacklist more verbose	2007-03-09 21:19:05 -05:00
bus.c	ACPI: use _STA bit names rather than 0x0F	2007-04-25 14:20:58 -04:00
button.c	ACPI: delete extra #defines in /drivers/acpi/ drivers	2007-02-12 23:50:52 -05:00
cm_sbs.c	ACPI: clean up ACPI_MODULE_NAME() use	2007-02-12 22:42:12 -05:00
container.c	ACPI: Remove duplicate definitions for _STA bits	2007-04-25 14:17:39 -04:00
debug.c	ACPI: clean up ACPI_MODULE_NAME() use	2007-02-12 22:42:12 -05:00
dock.c	ACPI: dock: use NULL for pointer	2007-03-28 23:31:43 -04:00
ec.c	ACPI: EC: Block queries until EC is fully initialized	2007-03-09 23:27:29 -05:00
event.c	ACPI: clean up ACPI_MODULE_NAME() use	2007-02-12 22:42:12 -05:00
fan.c	ACPI: delete extra #defines in /drivers/acpi/ drivers	2007-02-12 23:50:52 -05:00
glue.c	workaround rtc-related acpi table bugs	2007-05-08 11:15:18 -07:00
Kconfig	ACPI: video: output switch sysfs support	2007-05-09 22:44:38 -04:00
Makefile	Pull sbs into release branch	2007-04-28 23:16:59 -04:00
numa.c	Fix unnecesary meminit	2007-05-08 20:41:14 -07:00
osl.c	header cleaning: don't include smp_lock.h when not used	2007-05-08 11:15:07 -07:00
pci_bind.c	ACPI: clean up ACPI_MODULE_NAME() use	2007-02-12 22:42:12 -05:00
pci_irq.c	ACPI: clean up ACPI_MODULE_NAME() use	2007-02-12 22:42:12 -05:00
pci_link.c	ACPI: delete extra #defines in /drivers/acpi/ drivers	2007-02-12 23:50:52 -05:00
pci_root.c	ACPI: delete extra #defines in /drivers/acpi/ drivers	2007-02-12 23:50:52 -05:00
power.c	Pull misc-for-upstream into release branch	2007-03-09 23:19:50 -05:00
processor_core.c	ACPI: Remove duplicate definitions for _STA bits	2007-04-25 14:17:39 -04:00
processor_idle.c	[PATCH] x86: Log reason why TSC was marked unstable	2007-05-02 19:27:08 +02:00
processor_perflib.c	[CPUFREQ] Remove deprecated /proc/acpi/processor/performance write support	2007-04-26 14:32:02 -04:00
processor_thermal.c	ACPI: delete extra #defines in /drivers/acpi/ drivers	2007-02-12 23:50:52 -05:00
processor_throttling.c	ACPI: delete extra #defines in /drivers/acpi/ drivers	2007-02-12 23:50:52 -05:00
sbs.c	ACPI: sbs: Common interface with CM battery	2007-03-22 01:15:58 -04:00
scan.c	PNPACPI sets pnpdev->dev.archdata	2007-05-08 11:15:08 -07:00
system.c	ACPI: delete extra #defines in /drivers/acpi/ drivers	2007-02-12 23:50:52 -05:00
tables.c	Revert "ACPI: parse 2nd MADT by default"	2007-03-30 14:16:10 -04:00
thermal.c	acpi-thermal: fix mod_timer() interval	2007-04-24 08:23:08 -07:00
toshiba_acpi.c	backlight: Separate backlight properties from backlight ops pointers	2007-02-20 09:26:53 +00:00
utils.c	ACPI: clean up ACPI_MODULE_NAME() use	2007-02-12 22:42:12 -05:00
video.c	ACPI video: Don't export sysfs backlight interface if query _BCL fail	2007-07-03 01:33:53 -04:00