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static int set_aec_value(sensor_t *sensor, int value)
{
    if(value < 0) {
        value = 0;
    } else if(value > 1200) {
        value = 1200;
    }
    sensor->status.aec_value = value;
    return set_reg_bits(sensor, BANK_SENSOR, REG04, 0, 3, value & 0x3)
           || write_reg(sensor, BANK_SENSOR, AEC, (value >> 2) & 0xFF)
           || set_reg_bits(sensor, BANK_SENSOR, REG45, 0, 0x3F, value >> 10);
}