Error read_report -> reports -> read_device

[Bux28]

pi@openbot ~ $ sudo ds4drv --led 0055ff [info][Controller 1] Created devices /dev/input/js0 (joystick) /dev/input/event0 (evdev) [info][Bluetooth] Scanning for devices [info][Bluetooth] Found device XX:XX:XX:XX:XX:XX [info][Controller 1] Connected to XX:XX:XX:XX:XX:XX [info][Bluetooth] Scanning for devices [warning] Got simplified HID report, ignoring Exception in thread Thread-1: Traceback (most recent call last): File "/usr/lib/python2.7/threading.py", line 552, in bootstrap_inner self.run() File "/usr/lib/python2.7/threading.py", line 505, in run self.__target(_self.args, *_self.__kwargs) File "/usr/local/lib/python2.7/dist-packages/ds4drv.py", line 909, in read_device for report in device.reports: File "/usr/local/lib/python2.7/dist-packages/ds4drv.py", line 608, in reports report = self.read_report() File "/usr/local/lib/python2.7/dist-packages/ds4drv.py", line 576, in read_report S16LE.unpack(buf[16:18])[0], error: unpack requires a string argument of length 2

But the led is blue :)

[chrippa]

Hmm, this error really shouldn't be possible, strange. Please try modifying line 539 in ds4drv.py, from:

        if ret < 79:

to:

        if ret < 79 or len(self.buf) < 79:

[Bux28]

hi, this line is modified , and now this is the error (the controller is probably ok , the led is blue)

[info][Bluetooth] Scanning for devices Exception in thread Thread-1: Traceback (most recent call last): File "/usr/lib/python2.7/threading.py", line 552, in bootstrap_inner self.run() File "/usr/lib/python2.7/threading.py", line 505, in run self.__target(_self.args, *_self.__kwargs) File "/usr/local/lib/python2.7/dist-packages/ds4drv.py", line 909, in read_device for report in device.reports: File "/usr/local/lib/python2.7/dist-packages/ds4drv.py", line 608, in reports report = self.read_report() File "/usr/local/lib/python2.7/dist-packages/ds4drv.py", line 576, in read_report S16LE.unpack(buf[16:18])[0], error: unpack requires a string argument of length 2

[Bux28]

i have print buf for show why buf[16:18] havn't length 2

this is the result "8¿{7ÿÿaþ¼üXá

full message with print line before Exeption

[info][Controller 1] Connected to XX:XX:XX:XX:XX:XX [info][Bluetooth] Scanning for devices "8¿{7ÿÿaþ¼üXá Exception in thread Thread-1: Traceback (most recent call last): File "/usr/lib/python2.7/threading.py", line 552, in bootstrap_inner self.run() File "/usr/lib/python2.7/threading.py", line 505, in run self.__target(_self.args, *_self.__kwargs) File "/usr/local/lib/python2.7/dist-packages/ds4drv.py", line 911, in read_device for report in device.reports: File "/usr/local/lib/python2.7/dist-packages/ds4drv.py", line 610, in reports report = self.read_report() File "/usr/local/lib/python2.7/dist-packages/ds4drv.py", line 578, in read_report S16LE.unpack(buf[16:18])[0], error: unpack requires a string argument of length 2

[chrippa]

Hmm, this is very strange. Instead of the print you added, please add this, it will make the output more readable:

from binascii import hexlify
print(hexlify(self.buf))

[Bux28]

print : a111c0007e7d7e7c080000000058d3fd0500feff020081fdcc07a2e1000000000002000004f60270070005000000320270070005003000b1026f07000500300055026f0700050040000000d6d7502a

[chrippa]

This is so strange... the buffer looks good yet your Python fails to unpack the data. What exact version of Python are you using?

[Bux28]

2.7.3

[chrippa]

Hmm, I think it's possible your Python doesn't work with bytearray for some reason, even though it's suppose to be supported in 2.7, and works fine for me... Try changing this line:

        buf = self.buf

to:

        buf = bytes(self.buf)

[Bux28]

... i don't understand too

[info][Bluetooth] Found device XX:XX:XX:XX:XX:XX [info][Controller 1] Connected to XX:XX:XX:XX:XX:XX [info][Bluetooth] Scanning for devices Exception in thread Thread-1: Traceback (most recent call last): File "/usr/lib/python2.7/threading.py", line 552, in bootstrap_inner self.run() File "/usr/lib/python2.7/threading.py", line 505, in run self.__target(_self.args, *_self.__kwargs) File "/usr/local/lib/python2.7/dist-packages/ds4drv.py", line 911, in read_device for report in device.reports: File "/usr/local/lib/python2.7/dist-packages/ds4drv.py", line 610, in reports report = self.read_report() File "/usr/local/lib/python2.7/dist-packages/ds4drv.py", line 544, in read_report dpad = buf[8] % 16 TypeError: not all arguments converted during string formatting

[chrippa]

I managed to reproduce this now, seems like this was fixed in Python 2.7.4. 7c1e69c45e31c5e2bc196f0ff2679319c59d1ad6 has a workaround for this, so please try installing the git version.

[Bux28]

[info][controller 1] Created devices /dev/input/js0 (joystick) /dev/input/event0 (evdev) [info][bluetooth] Scanning for devices [info][bluetooth] Found device XX:XX:XX:XX:XX:XX [info][controller 1] Connected to Bluetooth Controller (XX:XX:XX:XX:XX:XX) [info][bluetooth] Scanning for devices [info][controller 1] Battery: 25%

:) thanks good work guy