diff options
| -rw-r--r-- | supervisor/shared/usb/usb.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/supervisor/shared/usb/usb.c b/supervisor/shared/usb/usb.c index 3c777c505..aa35b95e6 100644 --- a/supervisor/shared/usb/usb.c +++ b/supervisor/shared/usb/usb.c @@ -62,7 +62,7 @@ void load_serial_number(void) { uint8_t raw_id[COMMON_HAL_MCU_PROCESSOR_UID_LENGTH]; common_hal_mcu_processor_get_uid(raw_id); - usb_serial_number[0] = 0x300 | MP_ARRAY_SIZE(usb_serial_number); + usb_serial_number[0] = 0x300 | sizeof(usb_serial_number); for (int i = 0; i < COMMON_HAL_MCU_PROCESSOR_UID_LENGTH; i++) { for (int j = 0; j < 2; j++) { uint8_t nibble = (raw_id[i] >> (j * 4)) & 0xf; |