diff --git a/include/nuttx/fs/ioctl.h b/include/nuttx/fs/ioctl.h
index b87dc75c958..a4f49ff4444 100644
--- a/include/nuttx/fs/ioctl.h
+++ b/include/nuttx/fs/ioctl.h
@@ -110,6 +110,7 @@
 #define _I3CBASE        (0x4200) /* I3C driver ioctl commands */
 #define _MSIOCBASE      (0x4300) /* Mouse ioctl commands */
 #define _I2SOCBASE      (0x4400) /* I2S driver ioctl commands */
+#define _1WIREBASE      (0x4500) /* 1WIRE ioctl commands */
 #define _WLIOCBASE      (0x8b00) /* Wireless modules ioctl network commands */
 
 /* boardctl() commands share the same number space */
@@ -783,6 +784,13 @@
 #define _I2SOCVALID(c) (_IOC_TYPE(c)==_I2SOCBASE)
 #define _I2SOC(nr)     _IOC(_I2SOCBASE,nr)
 
+/* 1WIRE driver ioctl definitions *******************************************/
+
+/* see nuttx/1wire/1wire.h */
+
+#define _1WIREIOCVALID(c) (_IOC_TYPE(c)==_1WIREBASE)
+#define _1WIREIOC(nr)     _IOC(_1WIREBASE,nr)
+
 /****************************************************************************
  * Public Type Definitions
  ****************************************************************************/