A method to make android support camera hot swap when linux is compatible with android system

Abstract

The present invention is a method for enabling Android to support camera hot-swapping when Linux is compatible with the Android system, the method is applied in the operating environment of the Linux compatible Android system, and provides plug-and-play of the camera in the Android operating environment; the method Including the following steps: Step S1: Linux system is compatible with the Android operating environment preparation; Step S2: Create a Linux-side camera server; Step S3: Modify the Android-side camera hardware abstraction layer; Step S4: Start the Android application to access the camera, through the camera service framework Pass the request to open the camera to the camera hardware abstraction layer, and the camera hardware abstraction layer sends the request to open the camera to the Linux side, and the Linux-side camera server receives the request to open the camera from the Android side, and returns the file descriptor of the corresponding camera To the Android side, the Android side gets the permission to operate the camera.

Description

technical field [0001] The invention belongs to the technical field of Linux operating systems, and in particular relates to a method for enabling Android to support camera hot plugging when Linux is compatible with the Android system. Background technique [0002] In recent years, with the growth of Android users and the maturity and development of Android software and hardware products, the Android application ecology has shown explosive development. In many fields, it has surpassed the Windows application ecology and IOS application ecology, and has become the most widely used application ecology. . Developed based on the Linux kernel, Android is currently the Linux operating system with the highest market share in the mobile terminal market, and has an excellent ecological environment in the field of mobile terminals; the Windows system occupies the largest share of the PC market. system, there are huge security risks in information network security; and the Linux opera...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is the first: the user opens the Android environment without connecting the camera in advance, and if he wants to use the camera at this time, he needs to connect the camera and restart the PC; The operation of plugging in the camera will also lead to the problem that the camera cannot be used; thirdly, based on multiple usb ports on the PC side, the camera can be connected. If the user wants to switch between multiple cameras, he also needs to switch and restart the entire PC environment

Therefore, this great inconvenience will undoubtedly add a lot of distress to users and add obstacles to the ecological migration of Android applications.

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