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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
..
acorn
acpi ACPI: video: output switch sysfs support 2007-05-09 22:44:38 -04:00
amba
ata Merge branch 'reset-seq' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev 2007-05-08 11:58:20 -07:00
atm
auxdisplay
base fix hotplug for legacy platform drivers 2007-05-08 11:15:10 -07:00
block cciss: include scsi/scsi.h unconditionally 2007-05-08 11:15:10 -07:00
bluetooth [Bluetooth] Correct SCO buffer for another Broadcom based dongle 2007-05-05 00:36:22 +02:00
cdrom mm: remove destroy_dirty_buffers from invalidate_bdev() 2007-05-07 12:12:55 -07:00
char Merge branch 'drm-patches' of master.kernel.org:/pub/scm/linux/kernel/git/airlied/drm-2.6 2007-05-08 11:52:35 -07:00
clocksource
connector
cpufreq Add a new deferrable delayed work init 2007-05-08 11:15:05 -07:00
crypto
dio
dma
edac Fix 82875 PCI setup 2007-05-08 11:15:07 -07:00
eisa virtual_eisa_root_init() should be __init 2007-05-08 11:15:02 -07:00
fc4
firmware
hid header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
hwmon applesmc: Use standard sysfs names for labels 2007-05-08 20:41:14 -07:00
i2c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
ide Merge branch 'linux-2.6' 2007-05-08 13:37:51 +10:00
ieee1394 header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
infiniband Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2007-05-08 11:50:19 -07:00
input Merge master.kernel.org:/pub/scm/linux/kernel/git/dtor/input 2007-05-08 11:51:43 -07:00
isdn usb_gigaset: don't kmalloc(0) 2007-05-08 20:41:14 -07:00
kvm KVM: Remove unused 'instruction_length' 2007-05-03 10:52:32 +03:00
leds
macintosh Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2007-05-08 11:50:19 -07:00
mca
md Remove do_sync_file_range() 2007-05-08 11:15:04 -07:00
media Clean up mutex_trylock noise 2007-05-08 11:15:13 -07:00
message remove unused header file: drivers/message/i2o/i2o_lan.h 2007-05-08 11:15:02 -07:00
mfd header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
misc disable socket power in adapter driver instead of media one 2007-05-08 22:41:47 +02:00
mmc mmc: use lock instead of claim in debug check 2007-05-08 22:42:57 +02:00
mtd Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2007-05-08 11:50:19 -07:00
net Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 2007-05-08 11:57:17 -07:00
nubus
oprofile
parisc header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
parport parport_serial: fix PCI must_checks 2007-05-08 11:15:08 -07:00
pci Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2007-05-08 11:50:19 -07:00
pcmcia fix hotplug for legacy platform drivers 2007-05-08 11:15:10 -07:00
pnp PNP: workaround HP BIOS defect that leaves SMCF010 device partly enabled 2007-05-08 11:15:23 -07:00
ps3 Merge branch 'linux-2.6' 2007-05-08 13:37:51 +10:00
rapidio
rtc rtc-cmos: make it load on PNPBIOS systems 2007-05-08 11:15:19 -07:00
s390 Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2007-05-08 20:32:16 -07:00
sbus header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
scsi Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 2007-05-08 20:32:43 -07:00
serial Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2007-05-08 11:50:19 -07:00
sh
sn
spi au1550 SPI controller driver 2007-05-08 11:15:16 -07:00
tc
telephony replace pci_find_device in drivers/telephony/ixj.c 2007-05-08 11:15:02 -07:00
usb Merge master.kernel.org:/pub/scm/linux/kernel/git/dtor/input 2007-05-08 11:51:43 -07:00
video ACPI: video: output switch sysfs support 2007-05-09 22:44:38 -04:00
w1 Driver for the Maxim DS1WM, a 1-wire bus master ASIC core 2007-05-08 11:15:14 -07:00
zorro Amiga Zorro bus: kill resource_size_t warnings 2007-05-04 17:59:08 -07:00
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