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Diffstat (limited to 'common/usb_errno.h')
-rw-r--r--common/usb_errno.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/common/usb_errno.h b/common/usb_errno.h
index 57f37c16..284020a2 100644
--- a/common/usb_errno.h
+++ b/common/usb_errno.h
@@ -15,7 +15,7 @@
#define USB_ERR_RANGE 7
#define USB_ERR_STALL 8
#define USB_ERR_BABBLE 9
-#define USB_ERR_NAK 10
+#define USB_ERR_NAK 10 /* only for dwc2 buffer dma mode */
#define USB_ERR_DT 11
#define USB_ERR_IO 12
#define USB_ERR_SHUTDOWN 13