def hexToStr(hexStr):
    """
    Convert a string hex byte values into a byte string
    """
 
    bytes = []
    hexStr = ''.join(hexStr.split(" "))
    for i in range(0, len(hexStr)-2, 2):
        bytes.append(chr(int(hexStr[i:i+2], 16)))
    return ''.join( bytes )