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-rw-r--r--include/rtdef.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/rtdef.h b/include/rtdef.h
index 62d0a53685..dac345f26d 100644
--- a/include/rtdef.h
+++ b/include/rtdef.h
@@ -908,6 +908,7 @@ enum rt_device_class_type
RT_Device_Class_I2CBUS, /**< I2C bus device */
RT_Device_Class_USBDevice, /**< USB slave device */
RT_Device_Class_USBHost, /**< USB host bus */
+ RT_Device_Class_USBOTG, /**< USB OTG bus */
RT_Device_Class_SPIBUS, /**< SPI bus device */
RT_Device_Class_SPIDevice, /**< SPI device */
RT_Device_Class_SDIO, /**< SDIO bus device */