diff options
Diffstat (limited to 'src/stm32/usbotg.c')
| -rw-r--r-- | src/stm32/usbotg.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/stm32/usbotg.c b/src/stm32/usbotg.c index 99837a09..e1c880fb 100644 --- a/src/stm32/usbotg.c +++ b/src/stm32/usbotg.c @@ -160,8 +160,8 @@ usb_send_bulk_in(void *data, uint_fast8_t len) { uint32_t ctl = EPIN(USB_CDC_EP_BULK_IN)->DIEPCTL; if (!(ctl & USB_OTG_DIEPCTL_USBAEP)) - // Controller not enabled - return -2; + // Controller not enabled - discard data + return len; if (ctl & USB_OTG_DIEPCTL_EPENA) { // Wait for space to transmit OTGD->DIEPEMPMSK |= (1 << USB_CDC_EP_BULK_IN); |