js0 data in 8bytes?

Asked Apr 01 '19 at 18:59

Active Apr 02 '19 at 08:37

Viewed 225 times

I have a gamepad (Buffalo iBuffalo Classic USB Gampe for PC) and want to read its input value when I press the buttons.
I am using,

Ubuntu 16.04
Kernel 4.15 
64 bit

In my code,

import sys
pipe = open("/dev/input/js0", "r", encoding="utf-8")
msg = []
while 1:
    for char in pipe.read(1):
        msg += [ord(char)]
        if len(msg) == 8:
            print(msg)
            msg = []

However, I am getting unicodeDecodeError 'utf-8' codec can't decode byte 0xc8 in position 0: invalid continuation byte. So I used codec module,

import codec
pipe = codec.open("/dev/input/js0", "r", encoding="utf-8")

But I am still getting same error. I also tried to read different mode, rb. How can I read this input values and having it as 8btye values and in hexa format(ex.001c)

edited Apr 01 '19 at 19:46

asked Apr 01 '19 at 18:59

jayko03

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You're reading in utf-8? Does the joystick actually produce utf-8 characters, or does it provide bytes? You probably want to read the bytes raw rather than utf-8. – Tanktalus Apr 01 '19 at 19:02
Use the mode `'rb'` to open the device. – Klaus D. Apr 01 '19 at 19:04
@Tanktalus I guess it is supposed to produce bytes. – jayko03 Apr 01 '19 at 19:45

How can I read /dev/inputs/js0 data in 8bytes?

0 Answers0