Research and Implementation of the CMOS Camera Device Driver Based on S3C2440

With the processing of CMOS technology, the technology of video acquisition based on CMOS is becoming a new trend. However, many CMOS camera chip is not supported by the newest Linux kernel yet. In this paper, the method of designing the CMOS camera driver based on S3C2440 developing board with the embedded Linux environment is introduced. SCCB is a distinguishing feature of OV series CMOS chips. The realization of SCCB on ARM9 embedded platform is emphasized. S3C2440 provides a camera interface, and the camera driver is designed based on it. Then the process of the application is introduced. The experiences show that the driver works well for video previewing and coding. The video quality can satisfy the requirements. The driver can be easily applicant on other embedded equipment.