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authorJeff Epler <jepler@gmail.com>2021-02-22 07:33:04 -0600
committerJeff Epler <jepler@gmail.com>2021-02-22 07:33:04 -0600
commitaa1de6964588ee4b3f7d7490f80030fd89394eb6 (patch)
tree83c628c65066130c5e96d626c8c1c636f349db5e
parent144acfcb988479d6e5802bfa600a62be39d39be7 (diff)
fix length of generated serial number descriptor
-rw-r--r--supervisor/shared/usb/usb.c2
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;