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Diffstat (limited to 'nuttx/arch/arm/src/lpc214x/lpc214x_usbdev.h')
-rw-r--r--nuttx/arch/arm/src/lpc214x/lpc214x_usbdev.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/nuttx/arch/arm/src/lpc214x/lpc214x_usbdev.h b/nuttx/arch/arm/src/lpc214x/lpc214x_usbdev.h
index 55438799e..9ed2550a8 100644
--- a/nuttx/arch/arm/src/lpc214x/lpc214x_usbdev.h
+++ b/nuttx/arch/arm/src/lpc214x/lpc214x_usbdev.h
@@ -185,9 +185,9 @@
/* USB Control register bit definitions */
-#define LPC214X_USBCTRL_RDEN (0x00000001)
-#define LPC214X_USBCTRL_WREN (0x00000002)
-#define LPC214X_USBCTRL_EPMASK (0x0000003c)
+#define LPC214X_USBCTRL_RDEN (0x00000001) /* Bit 0=1: Read is enabled */
+#define LPC214X_USBCTRL_WREN (0x00000002) /* Bit 0=1: Write is enabled */
+#define LPC214X_USBCTRL_EPMASK (0x0000003c) /* Bits 2:5: Logical endpoint 0-15 */
/* Endpoints *******************************************************************/