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This article mainly introduces "what is the use of C++ 's hw_get_module parameters". In daily operation, I believe many people have doubts about the usefulness of C++ 's hw_get_module parameters. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful to answer the questions of "what is the use of C++ 's hw_get_module parameters?" Next, please follow the editor to study!

Camera_module_t * rawModule

/ * NOTE THIS * * /

Int err = hw_get_module (CAMERA_HARDWARE_MODULE_ID, (const hw_module_t * *) & rawModule)

First of all, rawModule is the pointer, then & rawModule is the address of the pointer, that is, the secondary pointer.

(const hw_module_t * *) & rawModule represents the attribute hw_module_t common in the camera_module_t class

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