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Raspberry Pi Forum piface control and display board problem
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Forum Thread Details
  • Replies 5 replies
  • Subscribers 665 subscribers
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  • raspberry_pi
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piface control and display board problem

Former Member
Former Member over 10 years ago

My PIFACE - PIFACE CONTROL & DISPLAY - RPI, I/O BOARD WITH LCD DISPLAY no longer works since I did an apt-get dist-upgrade on my Pi model B. I get: root@piradio:~# python3 /usr/share/doc/python3-pifacecad/examples/sysinfo.py Traceback (most recent call last):   File "/usr/local/lib/python3.2/dist-packages/pifacecommon/interrupts.py", line 383, 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     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/local/lib/python3.2/dist-packages/pifacecommon/interrupts.py", line 230, in gpio_interrupts_enable     bring_gpio_interrupt_into_userspace()   File "/usr/local/lib/python3.2/dist-packages/pifacecommon/interrupts.py", line 388, in bring_gpio_interrupt_into_userspace     export_file.write(str(GPIO_INTERRUPT_PIN)) IOError: [Errno 16] Device or resource busy Any ideas? Nick

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  • element14support
    element14support over 10 years ago

    Hello Nick,

    Are you registered yet? If not, I would suggest registering and we can post this in the Raspberry Pi Accessories area for the members to reply to more easily. If you have any issues please let me know.

     

    Thank you,

     

    Jamie

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  • Former Member
    Former Member over 10 years ago in reply to element14support

    I'm getting the same error. Can you tell me where help might be posted?  Thanks.  Bob

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  • element14support
    element14support over 10 years ago

    I have moved this over to our Raspberry Pi accessories space to see if our helpful members can chime in.

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  • Former Member
    Former Member over 10 years ago

    On my Raspberry Pi B, my internet radio using PiFaceCaD stopped working following the update to the Raspberry Pi 2 kernel.

     

    It appears that also with this recent kernel update, the way in which the kernel handles devices has changed with a device tree now being used.

     

    I found this out here - Raspberry Pi • View topic - Breakage after rpi-update? Read this.

     

    I have got my radio working by:

    • sudo raspi-config
    • 8 Advanced Options
    • A5 Device Tree - which I disabled
    • Reboot

     

    My radio now works again image

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  • Former Member
    Former Member over 10 years ago in reply to Former Member

    Disabling the  A5 device tree re-enabled my piFace digital which had refused to be recognised following a raspbian dist-upgrade that I did to retain compatability having just done one for a pi2 install.

    Thanks for the advice @Simon Gibbon

    Cheers Ian :-)

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