MLXCX_CMD_MAILBOX_LEN
nblocks = need / MLXCX_CMD_MAILBOX_LEN + 1;
if (need / MLXCX_CMD_MAILBOX_LEN + 1 > UINT8_MAX) {
nblocks = need / MLXCX_CMD_MAILBOX_LEN + 1;
copy = MIN(MLXCX_CMD_MAILBOX_LEN, rem);
copy = MIN(MLXCX_CMD_MAILBOX_LEN, rem);
if (need / MLXCX_CMD_MAILBOX_LEN + 1 > UINT8_MAX) {
uint8_t mlxb_data[MLXCX_CMD_MAILBOX_LEN];