'adb command. return the subprocess.Popen object.'

def raw_cmd(self, *args):

    cmd_line = (([self.adb()] + self.adbHostPortOptions) + list(args))
    if (os.name != 'nt'):
        cmd_line = ['    '.join(cmd_line)]
    return subprocess.Popen(cmd_line, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
