More project structure changes

checkm8_libusb/src/os/poll_posix.h

@@ -0,0 +1,14 @@
+#ifndef LIBUSB_POLL_POSIX_H
+#define LIBUSB_POLL_POSIX_H
+
+#define usbi_write write
+#define usbi_read read
+#define usbi_close close
+#define usbi_poll poll
+
+int usbi_pipe(int pipefd[2]);
+
+#define usbi_inc_fds_ref(x, y)
+#define usbi_dec_fds_ref(x, y)
+
+#endif /* LIBUSB_POLL_POSIX_H */