On Sunday, February 5, 2017 at 7:34:02 AM UTC-5, Alberto Sánchez wrote:
>
> Hi mwall,
>
> I am testing your new WMR300 drivers. 0,18rc2. It collects me data
> correctly but reports me this error:
>
> Feb 05 13:29:16 raspberrypi weewx[1369]: wmr300: e.errno=None
> e.strerror=None e.message=could not detach kernel driver from interface 0:
> No data available repr=USBError('could not detach kernel driver from...ata
> available',)
> Feb 05 13:29:17 raspberrypi weewx[1369]: wmr300: e.errno=None
> e.strerror=None e.message=could not detach kernel driver from interface 0:
> No data available repr=USBError('could not detach kernel driver from...ata
> available',)
> Feb 05 13:29:17 raspberrypi weewx[1369]: wmr300: e.errno=None
> e.strerror=None e.message=could not detach kernel driver from interface 0:
> No data available repr=USBError('could not detach kernel driver from...ata
> available',)
> Feb 05 13:29:17 raspberrypi weewx[1369]: wmr300: e.errno=None
> e.strerror=None e.message=could not detach kernel driver from interface 0:
> No data available repr=USBError('could not detach kernel driver from...ata
> available',)
> Feb 05 13:29:17 raspberrypi weewx[1369]: wmr300: e.errno=None
> e.strerror=None e.message=could not detach kernel driver from interface 0:
> No data available repr=USBError('could not detach kernel driver from...ata
> available',)
>
>
> Thank you very much.
>
hi alberto!
does weewx restart itself after any of these messages?
do these messages happen all the time, or just for short periods?
what is your hardware, operating system, libusb, and pyusb versions?
those are debug messages and in this case, they are not failures. for some
reason, some versions of libusb/pyusb report 'could not detach kernel
driver' when there is simply no data on the usb.
to eliminate the messages, you could just set debug=0 in weewx conf then
restart weewx.
or try wmr300 version 0.18rc3 - i made the driver less chatty:
https://raw.githubusercontent.com/weewx/weewx/development/bin/weewx/drivers/wmr300.py
m
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