diff options
| -rw-r--r-- | usbdrv/usbdrv.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/usbdrv/usbdrv.h b/usbdrv/usbdrv.h index 5b277f9..fd1083e 100644 --- a/usbdrv/usbdrv.h +++ b/usbdrv/usbdrv.h @@ -167,7 +167,9 @@ struct usbRequest; /* forward declaration */ USB_PUBLIC void usbInit(void); /* This function must be called before interrupts are enabled and the main - * loop is entered. + * loop is entered. We exepct that the PORT and DDR bits for D+ and D- have + * not been changed from their default status (which is 0). If you have changed + * them, set both back to 0 (configure them as input with no internal pull-up). */ USB_PUBLIC void usbPoll(void); /* This function must be called at regular intervals from the main loop. |