Documentation/userspace-api/media/v4l/v4l2grab-example.rst

File Facts

System

Linux kernel

Corpus path

Documentation/userspace-api/media/v4l/v4l2grab-example.rst

Extension

.rst

Size

427 bytes

Lines

19

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

.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: V4L

.. _v4l2grab-example:

**********************************
Video Grabber example using libv4l
**********************************

This program demonstrates how to grab V4L2 images in ppm format by using
libv4l handlers. The advantage is that this grabber can potentially work
with any V4L2 driver.


.. toctree::
    :maxdepth: 1

    v4l2grab.c

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.