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23b0f015bf
linux/drivers/acpi
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Luming Yu 23b0f015bf ACPI: video: output switch sysfs support 
Requires CONFIG_VIDEO_OUTPUT_CONTROL and CONFIG_ACPI_VIDEO.

After loading output.ko and video.ko, you would have
/sys/class/video_output and several device acpi_videoNum there.

For example, I got acpi_video0, acpi_video1,acpi_video2,and acpi_video3
under /sys/class/video_output on my T40.
I can query the status of  output device0 by running " cat
/sys/class/video_output/acpi_video0
" The return value is defined in ACPI SPEC B.5.5 _DCS(Return the
Status of Output Device).  Also you can turn off video1 and turn on
video0  by " echo 0 > acpi_video1; echo 0x80000000 > acpi_video0".
Please reference ACPI SPEC  B.5.7 _DSS for the parameter definition.

Please note that it may or may NOT works purely depending on if
your vendor providing correct ACPI video extension support in bios.
the driver output.ko and video.ko just works like a interface to
invoke BIOS.

Signed-off-by: Luming Yu <Luming.yu@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-05-09 22:44:38 -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: output switch sysfs support 2007-05-09 22:44:38 -04:00