我正在使用这种环境,
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我有Logitech G29赛车轮,想知道它的输入信息。
Ubuntu 16.04 Kernel 4.15
如何找出元组的每个元素代表什么?
例如,
0〜4:顺序
5〜6:值
7:代码
如果不打开包装,我想它会像
b'x10 \ xac \ xa7 \ x01 \ xd2 \ xa0 \ x02 \ x00'
那么十六进制代码与import struct
infile_path = "/dev/input/js0"
EVENT_SIZE = struct.calcsize("l") # I want to have 8 bytes of each action(event)
file = open(infile_path, "rb")
while 1:
event = file.read(EVENT_SIZE)
# not sure how many elements of tuple will be generate in here
_, _, _, _, ... _, = struct.unpack("l", event) ## here
# If I don't unpack, I guess it will be like
# b'x10\xac\xa7\x01\xd2\xa0\x02\x00'
元素的顺序相同吗?