Serialized Data Buffer

#include <stdio.h>
#include <stdint.h>
void build_packet(uint8_t command, uint16_t value, uint8_t status, uint32_t checksum) {
    uint8_t buffer[10];
    buffer[0]=165;
    buffer[9]=90;
    buffer[1]=command;
    buffer[2]=value & 0xFF;
    buffer[3]=(value >> 8) &0xFF;
    buffer[4]=status;
    buffer[5]=checksum & 0xFF;
    buffer[6]=(checksum >>8)& 0xFF;
    buffer[7]=(checksum >>16)& 0xFF;
    buffer[8]=(checksum >>24)& 0xFF;
    for(int i=0;i<10;i++){
        printf("%d ",buffer[i]);
    }
}
int main() {
    uint8_t cmd, status;
    uint16_t val;
    uint32_t crc;
    scanf("%hhu %hu %hhu %u", &cmd, &val, &status, &crc);
    build_packet(cmd, val, status, crc);
    return 0;
}