Packet Layout Using Union with Struct

#include <stdio.h>
#include <stdint.h>

typedef union {
    struct {
        uint8_t start;
        uint8_t command;
        uint16_t data;
        uint8_t crc;
        uint8_t end;
    } fields;
    uint8_t raw[6];
} Packet;

// Fill struct fields and print raw bytes
void build_and_print_packet(uint8_t start, uint8_t cmd, uint16_t data, uint8_t crc, uint8_t end) {
    // Your logic here
     Packet packet;
    
    // Fill the struct fields
    packet.fields.start = start;
    packet.fields.command = cmd;
    packet.fields.data = data;	//LSB
    packet.fields.crc = crc;
    packet.fields.end = end;
    
    // Print the raw bytes using the array view
    printf("%u %u %u %u %u %u", packet.raw[0], packet.raw[1], packet.raw[2], packet.raw[3], packet.raw[4], packet.raw[5]);
}

int main() {
    uint8_t s, c, crc, e;
    uint16_t d;
    scanf("%hhu %hhu %hu %hhu %hhu", &s, &c, &d, &crc, &e);
    build_and_print_packet(s, c, d, crc, e);
    return 0;
}