-#define PWQR_GET_CONC _IO (PWQR_IO, 0)
-#define PWQR_SET_CONC _IO (PWQR_IO, 1)
-#define PWQR_REGISTER _IO (PWQR_IO, 2)
-#define PWQR_UNREGISTER _IO (PWQR_IO, 3)
-#define PWQR_WAKE _IO (PWQR_IO, 4)
-#define PWQR_WAKE_OC _IO (PWQR_IO, 5)
-#define PWQR_WAIT _IOW(PWQR_IO, 6, struct pwqr_ioc_wait)
-#define PWQR_PARK _IO (PWQR_IO, 7)
+#define PWQR_CTL_GET_CONC _IO (PWQR_IO, 0)
+#define PWQR_CTL_SET_CONC _IO (PWQR_IO, 1)
+#define PWQR_CTL_REGISTER _IO (PWQR_IO, 2)
+#define PWQR_CTL_UNREGISTER _IO (PWQR_IO, 3)
+#define PWQR_CTL_WAKE _IO (PWQR_IO, 4)
+#define PWQR_CTL_WAKE_OC _IO (PWQR_IO, 5)
+#define PWQR_CTL_WAIT _IOW(PWQR_IO, 6, struct pwqr_ioc_wait)
+#define PWQR_CTL_PARK _IO (PWQR_IO, 7)
+
+#define PWQR_FL_NONBLOCK O_NONBLOCK
+#define PWQR_FL_CLOEXEC O_CLOEXEC
+#define PWQR_FL__FCTNL_FLAGS (PWQR_FL_NONBLOCK | PWQR_FL_CLOEXEC)
+#define PWQR_FL__SET (PWQR_FL__FCTNL_FLAGS)