Architecture; System Diagram - Texas Instruments OMAP35 Series User Manual

9.3. Architecture

9.3.1. System Diagram

Following block diagram shows basic architecture of the ISP Capture Driver.
Figure 9.3. Capture Driver Basic Architecture
The system architecture diagram illustrates the software components that are
relevant to the Camera Driver. Some components are outside the scope of this
design document. The following is a brief description of each component in the
figure.
Camera Applications: Camera applications refer to any application that
accesses the device node that is served by the Camera Driver. These applications
are not in the scope of this design. They are here to present the environment
in which the Camera Driver is used.
V4L2 Subsystem: The Linux V4L2 subsystem is used as an infrastructure
to support the operation of the Camera Driver. Camera applications mainly
use the V4L2 API to access the Camera Driver functionality. A Linux 2.6 V4L2
implementation is used in order to support the standard features that are
defined in the V4L2 specification.
Video Buffer Library: This library comes with V4L2. It provides helper
functions to cleanly manage the video buffers through a video buffer queue
object.
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Architecture
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