Documentation/userspace-api/media/glossary.rst

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

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.. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later

========
Glossary
========

.. note::

   The goal of this section is to standardize the terms used within the media
   userspace API documentation. This is Work In Progress.

.. Please keep the glossary entries in alphabetical order

.. glossary::

    Bridge Driver
	A :term:`Device Driver` that implements the main logic to talk with
	media hardware.

    CEC API
	**Consumer Electronics Control API**

	An API designed to receive and transmit data via an HDMI
	CEC interface.

	See :ref:`cec`.

    Data Unit

	Unit of data transported by a bus. On parallel buses, the data unit
	consists of one or more related samples while on serial buses the data
	unit is logical. If the data unit is image data, it may also be called a
	pixel.

    Device Driver
	Part of the Linux Kernel that implements support for a hardware
	component.

    Device Node
	A character device node in the file system used to control and
	transfer data in and out of a Kernel driver.

    Digital TV API
	**Previously known as DVB API**

	An API designed to control a subset of the :term:`Media Hardware`
	that implements	digital TV (e. g. DVB, ATSC, ISDB, etc).

	See :ref:`dvbapi`.

    DSP
        **Digital Signal Processor**

	A specialized :term:`Microprocessor`, with its architecture
	optimized for the operational needs of digital signal processing.

    FPGA
	**Field-programmable Gate Array**

	An :term:`IC` circuit designed to be configured by a customer or
	a designer after manufacturing.

	See https://en.wikipedia.org/wiki/Field-programmable_gate_array.

    Hardware Component
	A subset of the :term:`Media Hardware`. For example an :term:`I²C` or
	:term:`SPI` device, or an :term:`IP Block` inside an
	:term:`SoC` or :term:`FPGA`.

    Hardware Peripheral

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