[4/4]解决USB摄像头打开相机预览界面绿屏

liyujie

2025-08-28 786ff4f4ca2374bdd9177f2e24b503d43e7a3b93

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static const char lockdir[] = "attach-p-cmd.test-lock";
static const char pidfile[] = "attach-p-cmd.test-pid";