Installed as per instructions here but getting a Python error related to GPIO25 when trying to run sysinfo.py
pi@raspberrypi ~ $ sudo python3 /usr/share/doc/python3-pifacecad/examples/sysinfo.py
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/pifacecommon/interrupts.py", line 363, in bring_gpio_interrupt_into_userspace
with open(GPIO_INTERRUPT_DEVICE_VALUE):
IOError: [Errno 2] No such file or directory: '/sys/devices/virtual/gpio/gpio25/value'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/share/doc/python3-pifacecad/examples/sysinfo.py", line 61, in <module>
cad = pifacecad.PiFaceCAD()
File "/usr/lib/python3/dist-packages/pifacecad/core.py", line 50, in __init__
self.init_board()
File "/usr/lib/python3/dist-packages/pifacecad/core.py", line 87, in init_board
self.enable_interrupts()
File "/usr/lib/python3/dist-packages/pifacecad/core.py", line 59, in enable_interrupts
self.gpio_interrupts_enable()
File "/usr/lib/python3/dist-packages/pifacecommon/interrupts.py", line 210, in gpio_interrupts_enable
bring_gpio_interrupt_into_userspace()
File "/usr/lib/python3/dist-packages/pifacecommon/interrupts.py", line 368, in bring_gpio_interrupt_into_userspace
export_file.write(str(GPIO_INTERRUPT_PIN))
IOError: [Errno 16] Device or resource busy
