serial: add TIOCSSINGLEWIREDUPLEX ioctl

PetervdPerk-NXP · May 7, 2024 · 9dcab75 · 9dcab75
1 parent c9a2e4a
commit 9dcab75
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/include/nuttx/serial/tioctl.h b/include/nuttx/serial/tioctl.h
@@ -198,6 +198,14 @@
 
 #define SER_SWAP_ENABLED   (1 << 0) /* Enable/disable RX/TX swap */
 
+/* Single-wire UART Duplex */
+
+#define TIOCSSINGLEWIREDUPLEX _TIOC(0x0037)  /* Set single-wire duplex mode */
+#define TIOCGSINGLEWIREDUPLEX _TIOC(0x0038)  /* Get single-wire duplex mode */
+
+#  define SER_SINGLEWIRE_DUPLEX_TX       (1 << 0)  /* Single-wire run in TX Mode */
+#  define SER_SINGLEWIRE_DUPLEX_RX       (0)       /* Single-wire run in RX Mode */
+
 /* LIN Protocol Support */
 
 #define TIOCSLINID      _TIOC(0x0037) /* Master send one LIN header with specified LIN identifier: uint8_t */