Construct UART Data Frame with Parity Bit

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

typedef struct {
    uint8_t parity_enable : 1;
    uint8_t parity_type   : 1;
    uint8_t reserved      : 6;
} UART_Control;

uint8_t create_uart_frame(uint8_t data, UART_Control *ctrl) {
    // Your logic here
    int count_one = 0, pos = 0;
    if(!(ctrl->parity_enable))
    {
        // data |= (0<<7);
    }
    else
    {
        while(pos<8)
        {
            count_one += ((data>>pos)&(0x01));
            pos++;
        }
        if(!(ctrl->parity_type))
        {
            ((count_one % 2) == 0)? (data |= (0<<7)) : (data |= (1<<7));
        }
        else
        {
            ((count_one % 2) == 0)? (data |= (1<<7)) : (data |= (0<<7));
        }
    }

    return data;
}

int main() {
    uint8_t data;
    scanf("%hhu", &data);  // 7-bit input

    uint8_t parity_enable, parity_type;
    scanf("%hhu %hhu", &parity_enable, &parity_type);

    UART_Control ctrl;
    ctrl.parity_enable = parity_enable;
    ctrl.parity_type = parity_type;

    uint8_t frame = create_uart_frame(data, &ctrl);
    printf("frame = 0x%02X", frame);

    return 0;
}