040000 tree 1f20b35449d2d16f3e76f0455c312dbe1dae31c5	hello_usbdev
040000 tree 7a36c5cf05d3fccea47c13e1ba54d42b2b9f3f1e	hello_world
100644 blob fe95ea4176d928fd4cf43f74df7761b3acb8a7d4	meson.build