Messages in this thread | | | Subject | Re: [patch 4/6] Add output class document | From | Timo Hoenig <> | Date | Thu, 02 Nov 2006 15:04:29 +0100 |
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Hi,
On Sat, 2006-11-04 at 21:22 +0800, Yu Luming wrote:
> diff --git a/Documentation/video-output.txt b/Documentation/video-output.txt > new file mode 100644 > index 0000000..71b1dba > --- /dev/null > +++ b/Documentation/video-output.txt > @@ -0,0 +1,34 @@ > + > + Video Output Switcher Control > + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > + 2006 luming.yu@gmail.com > + > +The output sysfs class driver is to provide video output abstract 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 > +aptop, acpi video driver registered its output devices and read/write method > +for state with output sysfs class. The user interface under sysfs is :
Rephrased, s/Thinkpad/ThinkPad, s/aptop/laptop, s/acpi/ACPI, kill whitespace in front of colon:
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 devices through a common sysfs interface. For example, on my IBM ThinkPad T42 laptop, the ACPI video driver registers its output devices and read/write methods for 'state' with output sysfs class. The user interface under sysfs is:
The last but one sentence still sounds bogus to me, maybe someone else has an idea.
> +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 > +
Thanks,
Timo
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