I recently decided to upgrade my RPi running weewx 3.5 on the Debian 8
Wheezy based Raspbian to weewx 3.8 running on the new Debian 9 Stretch
Raspbian.
When the 1-wire adapter is plugged into the usb socket, syslog shows
Dec 7 17:33:27 wx kernel: [436943.136563] usb 1-1.5: new full-speed USB
device number 107 using dwc_otg
Dec 7 17:33:27 wx kernel: [436943.270174] usb 1-1.5: New USB device found,
idVendor=04fa, idProduct=2490
Dec 7 17:33:27 wx kernel: [436943.270189] usb 1-1.5: New USB device
strings: Mfr=0, Product=0, SerialNumber=0
Dec 7 17:33:27 wx mtp-probe: checking bus 1, device 107:
"/sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.5"
Dec 7 17:33:27 wx mtp-probe: bus: 1, device: 107 was not an MTP device
Using weewx-owfs-0.21, weewx loads the owfs config and promptly exits.
Syslog shows
Dec 7 17:35:26 wx OWFS[23185]: DEFAULT: owlib.c:(208) Cannot open USB bus
master
Dec 7 17:35:26 wx OWFS[23185]: DEFAULT: owlib.c:(52) No valid 1-wire buses
found
Dec 7 17:35:26 wx OWFS[23185]: import of driver failed: (<class
'ow.exNoController'>)
Dec 7 17:35:26 wx OWFS[23185]: engine: Unable to load driver:
Dec 7 17:35:26 wx OWFS[23185]: **** Exiting...
I'm using the same entry in /etc/udev/rules.d/98-owfs.rules that worked
before:
ATTRS{idVendor}=="04fa", ATTRS{idProduct}=="2490", SUBSYSTEMS=="usb",
ACTION=="add", MODE="0666", GROUP="pi"
/dev/bus/usb/001/ shows a usb port which is pi group readable and writable:
# ls -l
total 0
crw-rw-rw- 1 root pi 189, 106 Dec 7 17:33 107
In an attempt to test permissions, running the following simple program as
root:
#!/usr/bin/python
import ow
ow.init('u')
Dec 11 07:05:46 wx OWFS[30742]: DEFAULT: owlib.c:(208) Cannot open USB bus
master
Dec 11 07:05:46 wx OWFS[30742]: DEFAULT: owlib.c:(52) No valid 1-wire
buses found
Thanks for your help.
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