diff options
Diffstat (limited to 'ports')
| -rw-r--r-- | ports/atmel-samd/common-hal/busio/UART.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/ports/atmel-samd/common-hal/busio/UART.c b/ports/atmel-samd/common-hal/busio/UART.c index a95ccf3ac..090232b41 100644 --- a/ports/atmel-samd/common-hal/busio/UART.c +++ b/ports/atmel-samd/common-hal/busio/UART.c @@ -269,6 +269,11 @@ size_t common_hal_busio_uart_read(busio_uart_obj_t *self, uint8_t *data, size_t #endif } + if (total_read == 0) { + *errcode = EAGAIN; + return MP_STREAM_ERROR; + } + return total_read; } |