Documentation/admin-guide/video-output.rst

Source file repositories/reference/linux-study-clean/Documentation/admin-guide/video-output.rst

File Facts

System: Linux kernel
Corpus path: Documentation/admin-guide/video-output.rst
Extension: .rst
Size: 1135 bytes
Lines: 35
Domain: Support Tooling And Documentation
Bucket: Documentation
Inferred role: Support Tooling And Documentation: documentation
Status: atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

No C-style include directives detected by the generator.

Detected Declarations

No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

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

Annotation

Atlas domain: Support Tooling And Documentation / Documentation.
Implementation status: atlas-only.

Implementation Notes

This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.