diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/feature-removal-schedule.txt | 10 | ||||
| -rw-r--r-- | Documentation/video-output.txt | 34 |
2 files changed, 43 insertions, 1 deletions
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 0ba6af02cda..b3d1ce7e3ba 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -274,6 +274,7 @@ Who: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> --------------------------- +<<<<<<< test:Documentation/feature-removal-schedule.txt What: ACPI hotkey driver (CONFIG_ACPI_HOTKEY) When: 2.6.21 Why: hotkey.c was an attempt to consolidate multiple drivers that use @@ -306,11 +307,18 @@ Why: The ACPI namespace is effectively the symbol list for the BIOS can be extracted and disassembled with acpidump and iasl as documented in the pmtools package here: http://ftp.kernel.org/pub/linux/kernel/people/lenb/acpi/utils - Who: Len Brown <len.brown@intel.com> --------------------------- +What: ACPI procfs interface +When: July 2007 +Why: After ACPI sysfs conversion, ACPI attributes will be duplicated + in sysfs and the ACPI procfs interface should be removed. +Who: Zhang Rui <rui.zhang@intel.com> + +--------------------------- + What: /proc/acpi/button When: August 2007 Why: /proc/acpi/button has been replaced by events to the input layer diff --git a/Documentation/video-output.txt b/Documentation/video-output.txt new file mode 100644 index 00000000000..e517011be4f --- /dev/null +++ b/Documentation/video-output.txt @@ -0,0 +1,34 @@ + + Video Output Switcher Control + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + 2006 luming.yu@intel.com + +The output sysfs class driver provides an abstract video output layer that +can be used to hook platform specific methods to enable/disable video output +device through common sysfs interface. For example, on my IBM ThinkPad T42 +laptop, The ACPI video driver registered its output devices and read/write +method for 'state' with output sysfs class. The user interface under sysfs is: + +linux:/sys/class/video_output # tree . +. +|-- CRT0 +| |-- device -> ../../../devices/pci0000:00/0000:00:01.0 +| |-- state +| |-- subsystem -> ../../../class/video_output +| `-- uevent +|-- DVI0 +| |-- device -> ../../../devices/pci0000:00/0000:00:01.0 +| |-- state +| |-- subsystem -> ../../../class/video_output +| `-- uevent +|-- LCD0 +| |-- device -> ../../../devices/pci0000:00/0000:00:01.0 +| |-- state +| |-- subsystem -> ../../../class/video_output +| `-- uevent +`-- TV0 + |-- device -> ../../../devices/pci0000:00/0000:00:01.0 + |-- state + |-- subsystem -> ../../../class/video_output + `-- uevent + |