Something wrong with AbsInfo

[tapir]

I'm trying to mirror a gamepad with code below.

from evdev import InputDevice, UInput, AbsInfo, ecodes as e

cap = {
    e.EV_MSC : [e.MSC_SCAN],
    e.EV_KEY : [e.BTN_A, e.BTN_B, e.BTN_C, e.BTN_X, e.BTN_Y, e.BTN_Z, e.BTN_TL, e.BTN_TR, e.BTN_TL2],
    e.EV_ABS : [(e.ABS_X, AbsInfo(value=128, min=0, max=255, fuzz=0, flat=15, resolution=0)), (e.ABS_Y, AbsInfo(value=128, min=0, max=255, fuzz=0, flat=15, resolution=0))]
}

dev_real = InputDevice('/dev/input/event20')
dev_virt = UInput(cap, name='Cypress Virtual')

for event in dev_real.read_loop():
    dev_virt.write_event(event)

Above code keeps getting the error below.

Traceback (most recent call last):
  File "pytest.py", line 10, in <module>
    dev_virt = UInput(cap, name='Cypress Virtual')
  File "/usr/lib/python3.5/site-packages/evdev/uinput.py", line 83, in __init__
    _uinput.create(self.fd, name, vendor, product, version, bustype, absinfo)
OSError: [Errno 22] Invalid argument

But when I change the value=128 to value=0 for both AbsInfo()'s. it runs without an error. Printing the uinput device capabilities with evtest.py reveals this:

  Type EV_ABS 3:
    Code ABS_X 0:
      val 139, min 0, max 0, fuzz 255, flat 0, res 0
    Code ABS_Y 1:
      val 101, min 0, max 0, fuzz 255, flat 0, res 0

Any help would be appreciated.

Thanks

[tapir]

        # set device capabilities
        for etype, codes in events.items():
            for code in codes:
                # handle max, min, fuzz, flat
                if isinstance(code, (tuple, list, device.AbsInfo)):
                    # flatten (ABS_Y, (0, 255, 0, 0)) to (ABS_Y, 0, 255, 0, 0)
                    f = [code[0]]; f += code[1]
                    absinfo.append(f)
                    code = code[0]

Could it be related to this part in uinput.py:70?