diff options
| -rw-r--r-- | src/ao_usb.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/ao_usb.c b/src/ao_usb.c index b55130f2..b4e3f1fe 100644 --- a/src/ao_usb.c +++ b/src/ao_usb.c @@ -383,8 +383,11 @@ ao_usb_pollchar(void) __critical if ((USBCSOL & USBCSOL_OUTPKT_RDY) == 0) return AO_READ_AGAIN; ao_usb_out_bytes = (USBCNTH << 8) | USBCNTL; - if (ao_usb_out_bytes == 0) + if (ao_usb_out_bytes == 0) { + USBINDEX = AO_USB_OUT_EP; + USBCSOL &= ~USBCSOL_OUTPKT_RDY; return AO_READ_AGAIN; + } } --ao_usb_out_bytes; c = USBFIFO[AO_USB_OUT_EP << 1]; |