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OpenHarmony基于HDF简单驱动开发实例


OpenHarmony基于HDF简单驱动开发实例

背景

  • OpenHarmony-3.0-LTS
  • qemu_small_system_demo
  • liteos_a
  • qemu

添加配置

device/qemu/arm_virt/liteos_a/hdf_config/device_info/device_info.hcs

device_info 新增:

sample_host :: host {
    hostName = "sample_host";
    sample_device :: device {
        device0 :: deviceNode {
            policy = 2;
            priority = 100;
            preload = 1;
            permission = 0664;
            moduleName = "sample_driver";
            serviceName = "sample_service";
        }
    }
}

添加驱动代码

。。。。



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