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# MIPI CSI
-- [Overview](#section72226945170128)
-- [Available APIs](#section735525713405)
-- [How to Develop](#section378858277170128)
-- [Development Example](#section2049027816170128)
-
## Overview
Defined by the Mobile Industry Processor Interface \(MIPI\) Alliance, the Camera Serial Interface \(CSI\) is a specification that allows data to be transmitted from the camera to the host processor on mobile platforms. In the Hardware Driver Foundation \(HDF\), the MIPI CSI module uses the service-free mode for API adaptation. The service-free mode applies to the devices that do not provide user-mode APIs or the OS that does not distinguish the user mode and the kernel mode. In the service-free mode, DevHandle \(a void pointer\) directly points to the kernel-mode address of the device object.