That's awesome Ryan.  I'm not physically near my pi/acurite right now, but 
the next time I am I'm going to try this approach.  Thanks for posting.

On Sunday, August 17, 2025 at 10:16:21 AM UTC-4 Ryan wrote:

> FWIW, the same problem appeared for me when I updated the Pi to 
> 6.12.34+rpt-rpi-v6 from 6.6.20+rpt-rpi-v6. It's now working for me on 
> 6.6.20, but when I have time in a few weeks, I may step up the kernel 
> release by release until it breaks and report it to the kernel/pi devs and 
> post back here. 
>
> For me, the "fix" was to simply copy /boot/vmlinuz-6.6.20+rpt-rpi-v6 to 
> /boot/firmware/kernel.img and /boot/initrd.img-6.6.20+rpt-rpi-v6 to 
> initramfs since the old version was still on the Pi. 
>
> Thanks for your troubleshooting, it pointed me in the right direction!
>
> On Friday, July 18, 2025 at 2:56:09 PM UTC-5 James J Dempsey wrote:
>
>> Thank you, vince, for your reply.  It's very helpful.
>>
>> The OS I'm running is "Linux 6.12.34+rpt-rpi-2712 #1 SMP PREEMPT Debian 
>> 1:6.12.34-1+rpt1~bookworm (2025-06-26) aarch64 GNU/Linux" according to 
>> raspinfo.
>>
>> It's connected to the local network via Ethernet.  There's a monitor 
>> connected via HDMI.
>>
>> On USB, it has the Acurite weather station (model 01536), a Microsoft 
>> Intellimouse,   a Macally Small USB Wired Keyboard that reports itself as 
>> "GASIA USB KB V11" and a CyberPower CP1500PFCLCD UPS.  Perhaps I should try 
>> removing some devices or switching the kbd/mouse to see if makes a 
>> difference.
>>
>> I will try the python USB test code you mention and maybe I'll try to 
>> modify the acurite driver to hardwire the device ids just as a test.
>>
>> Thank you again,
>>
>> --Jim--
>>
>>
>> On Friday, July 18, 2025 at 1:06:14 PM UTC-4 vince wrote:
>>
>>> What precise os are you running on the pi ?    What exactly is connected 
>>> to the pi and how ?
>>>
>>> I might add that plugging/unplugging stuff in can 'really' confuse a pi. 
>>>   Suggest you power down, unplug the station, power up, and plug the 
>>> station in and then don't touch things connected to USB.
>>>
>>> (disclaimer - not an acurite user but....)
>>>
>>> The acurite driver doesn't seem to accept an option telling it which 
>>> /dev device to use, so I'm wondering whether a udev rule does/doesn't even 
>>> help, but regardless take a look around line 920 or so in the driver 
>>> /usr/share/weewx/weewx/drivers/acurite.py and perhaps add some more 
>>> debugging info there before it returns None
>>>
>>> The driver uses the usb python module to figure out what's connected to 
>>> the usb busses.   I found a script in 
>>> https://stackoverflow.com/questions/8110310/simple-way-to-query-connected-usb-devices-info-in-python
>>>  
>>> that should return the same info the driver is parsing.  I've appended the 
>>> 'code updated for python3' answer from that person below, with the last two 
>>> lines added below for readability in its output.
>>>
>>> import re
>>> import subprocess
>>> device_re = 
>>> re.compile(b"Bus\s+(?P<bus>\d+)\s+Device\s+(?P<device>\d+).+ID\s(?P<id>\w+:\w+)\s(?P<tag>.+)$",
>>>  
>>> re.I)
>>> df = subprocess.check_output("lsusb")
>>> devices = []
>>> for i in df.split(b'\n'):
>>>     if i:
>>>         info = device_re.match(i)
>>>         if info:
>>>             dinfo = info.groupdict()
>>>             dinfo['device'] = '/dev/bus/usb/%s/%s' % (dinfo.pop('bus'), 
>>> dinfo.pop('device'))
>>>             devices.append(dinfo)
>>>
>>> for dev in devices:
>>>     print(dev)
>>>
>>> Just as an example - my pi4 returns:
>>> {'id': b'1d6b:0003', 'tag': b'Linux Foundation 3.0 root hub', 'device': 
>>> "/dev/bus/usb/b'002'/b'001'"}
>>> {'id': b'067b:2303', 'tag': b'Prolific Technology, Inc. PL2303 Serial 
>>> Port / Mobile Action MA-8910P', 'device': "/dev/bus/usb/b'001'/b'003'"}
>>> {'id': b'2109:3431', 'tag': b'VIA Labs, Inc. Hub', 'device': 
>>> "/dev/bus/usb/b'001'/b'002'"}
>>> {'id': b'1d6b:0002', 'tag': b'Linux Foundation 2.0 root hub', 'device': 
>>> "/dev/bus/usb/b'001'/b'001'"}
>>>
>>> and lsusb returns:
>>> Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
>>> Bus 001 Device 003: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial 
>>> Port / Mobile Action MA-8910P
>>> Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
>>> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>>>
>>> So they match, FWIW, although dmesg returns a value that is offset by 
>>> one (count from zero vs. count from one inconsistency maybe)
>>> usb 1-1.2: pl2303 converter now attached to ttyUSB0
>>>
>>> So for me on a Vantage which 'does' support the port=/dev/whatever 
>>> option, I fortunately can just say /dev/ttyUSB0.  Acurite doesn't seem to 
>>> be so flexible unfortunately.
>>>
>>> The acurite driver commentary and lots of weewx threads here suggest 
>>> acurite hardware can get funky when powered up/down too, but I'm not an 
>>> acurite user so I can't say more there.  See the driver commentary for more 
>>> info than my brain can parse this morning.
>>>
>>> Hope this helps.
>>>
>>> On Friday, July 18, 2025 at 7:54:01 AM UTC-7 James J Dempsey wrote:
>>>
>>>> Peter Quinn (p q) suggests that maybe the problem with weewx not 
>>>> finding the Acurite station might be permissions.
>>>>
>>>> That's a great suggestion, but I don't think it is permissions.
>>>>
>>>> I have added user weewx to all the groups I'm in: 
>>>> dialout,cdrom,sudo,audio,video,plugdev,games,users,input,render,netdev,spi,i2c,gpio
>>>>  
>>>> and weewx (just to be sure).
>>>> I also tried running weewx from the command line as root with the same 
>>>> result of not finding the device.
>>>>
>>>> I'm starting to think it's a problem of USB device numbering w.r.t. 
>>>> whatever strategy weewx is using vs. the Raspberry Pi 5.
>>>>
>>>> It makes me ask the question:  Is anyone out there using an Acurite 
>>>> station with weewx on a Raspberry Pi 5 successfully?  (I would expect the 
>>>> answer is yes, but I want to be sure.)
>>>>
>>>> More details follow:
>>>>
>>>> To try to understand this, I ran weewx under strace.
>>>>
>>>> Currently, lsusb shows:  (I've been trying different ports)
>>>> Bus 003 Device 003: ID 045e:001e Microsoft Corp. IntelliMouse Explorer
>>>>
>>>> Bus 003 Device 002: ID 24c0:0003 Chaney Instrument Model 01036 weather
>>>> center
>>>>
>>>> Here is some strace output.
>>>>
>>>> openat(AT_FDCWD, "/sys/bus/usb/devices/usb4/descriptors", 
>>>> O_RDONLY|O_CLOEXEC) = 9
>>>> read(9, 
>>>> "\22\1\0\3\t\0\3\tk\35\3\0\22\6\3\2\1\1\t\2\37\0\1\1\0\340\0\t\4\0\0\1"...,
>>>>  
>>>> 256) = 49
>>>> close(9)                                = 0
>>>> recvfrom(7, NULL, 0, MSG_PEEK|MSG_TRUNC, NULL, NULL) = -1 EAGAIN 
>>>> (Resource temporarily unavailable)
>>>> mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 
>>>> -1, 0) = 0x7ffece280000
>>>> getpid()                                = 2492
>>>>
>>>> This next line is where it puts this in the log:
>>>> Jul 15 20:01:12 capecod weewxd[2969]: DEBUG weewx.drivers.acurite: 
>>>> Found station at bus= device=
>>>> (where bus= and device= indicate it hasn't found the port of the 
>>>> acurite properly)
>>>>
>>>> sendto(3, "<15>weewxd[2492]: DEBUG weewx.dr"..., 77, 0, NULL, 0) = 77
>>>>
>>>> Then it tries to open /dev/bus/usb/003/002 which seems like it maybe 
>>>> (?) matches the lsusb output above.  However, when I cat 
>>>> /sys/bus/usb/devices/3-2/product the result is "Microsoft IntelliMouse® 
>>>> Explorer" which seems wrong.  If it's opening the wrong usb device, it's 
>>>> not surprise it isn't working.
>>>>
>>>> openat(AT_FDCWD, "/dev/bus/usb/003/002", O_RDWR|O_CLOEXEC) = 9
>>>>
>>>> Then it tries to do a bunch of ioctls on that device, most of which 
>>>> seem to fail.
>>>>
>>>> ioctl(9, USBDEVFS_GET_CAPABILITIES, 0x1a4cdb84) = 0
>>>> ioctl(9, USBDEVFS_GETDRIVER, 0x7fffd72b96b0) = -1 ENODATA (No data 
>>>> available)
>>>> ioctl(9, USBDEVFS_IOCTL, 0x7fffd72b96a0) = -1 ENODATA (No data 
>>>> available)
>>>> ioctl(9, USBDEVFS_SETCONFIGURATION, 0x7fffd72b960c) = -1 EPROTO 
>>>> (Protocol error)
>>>> ioctl(9, USBDEVFS_CLAIMINTERFACE, 0x7fffd72b95d4) = 0
>>>> openat(AT_FDCWD, "/sys/bus/usb/devices/3-1/bConfigurationValue", 
>>>> O_RDONLY|O_CLOEXEC) = 10
>>>> read(10, "1\n", 19)                     = 2
>>>> close(10)                               = 0
>>>> ioctl(9, USBDEVFS_SETINTERFACE, 0x7fffd72b95b0) = -1 EPROTO (Protocol 
>>>> error)
>>>> timerfd_settime(6, TFD_TIMER_ABSTIME, {it_interval={tv_sec=0,
>>>> tv_nsec=0}, it_value={tv_sec=200, tv_nsec=288749571}}, NULL) = 0
>>>> ioctl(9, USBDEVFS_SUBMITURB, 0x1a49efd0) = 0
>>>> read(5, "\1\0\0\0\0\0\0\0", 8)          = 8
>>>> ppoll([{fd=5, events=POLLIN}, {fd=6, events=POLLIN}, {fd=9, 
>>>> events=POLLOUT}], 3, {tv_sec=60, tv_nsec=0}, NULL, 0) = 1 ([{fd=9, 
>>>> revents=POLLOUT}], left {tv_sec=59, tv_nsec=997897751})
>>>> ioctl(9, USBDEVFS_REAPURBNDELAY, 0x7fffd72b95b0) = 0
>>>> timerfd_settime(6, 0, {it_interval={tv_sec=0, tv_nsec=0}, 
>>>> it_value={tv_sec=0, tv_nsec=0}}, NULL) = 0
>>>> ioctl(9, USBDEVFS_REAPURBNDELAY, 0x7fffd72b95b0) = -1 EAGAIN (Resource 
>>>> temporarily unavailable)
>>>> ioctl(9, USBDEVFS_RELEASEINTERFACE, 0x7fffd72b9534) = 0
>>>> getpid()                                = 2492
>>>> sendto(3, "<11>weewxd[2492]: ERROR weewx.dr"..., 117, 0, NULL, 0) = 117
>>>> clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME, {tv_sec=229, 
>>>> tv_nsec=291213340},
>>>>
>>>> It feels to me like it's somehow getting confused about the 
>>>> bus/device/port numbers.
>>>>
>>>> Not sure how to proceed.  I would have thought that lots of people 
>>>> would have already run weeewx on pi 5, so I would be surprised if this 
>>>> were 
>>>> a software bug.
>>>>
>>>> --Jim--
>>>>
>>>> On Tuesday, July 15, 2025 at 4:53:52 PM UTC-4 p q wrote:
>>>>
>>>> The code in question is:
>>>>
>>>>     def _find_dev(vendor_id, product_id, device_id=None):
>>>>         """Find the vendor and product ID on the USB."""
>>>>         for bus in usb.busses():
>>>>             for dev in bus.devices:
>>>>                 if dev.idVendor == vendor_id and dev.idProduct == 
>>>> product_id:
>>>>                     if device_id is None or dev.filename == device_id:
>>>>                         log.debug('Found station at bus=%s device=%s' %
>>>>                                   (bus.dirname, dev.filename))
>>>>                         return dev
>>>>         return None
>>>>
>>>> So, it's failing to find your station on USB. Could it be security? 
>>>> Does the user running Weewx have permissions to read the USB?
>>>>
>>>> You might try to run Weewx from the command line and see what it says. 
>>>> If my guess about permissions is correct, it will run.
>>>>
>>>>
>>>>
>>>> On Tue, Jul 15, 2025 at 1:29 PM James J Dempsey wrote:
>>>>
>>>> I was running my Acurite station on an ODroid N2 and have switched to a 
>>>> Raspberry Pi 5.  The ODroid was running 5.1.0 on Ubuntu Lite.  It worked 
>>>> fine on the ODroid (for years) and I can't get it working on the Pi 5.
>>>>
>>>> I installed weewx 5.1.0 fresh on the Pi 5, following the weewx 
>>>> instructions for debian.  I moved my config file and sqlite database from 
>>>> the old system to the new system.
>>>>
>>>> It appears that weewx can't find the station on the Pi 5 -- I see this 
>>>> in the log:
>>>>
>>>> DEBUG weewx.drivers.acurite: Found station at bus= device=
>>>>
>>>> I assume there should be values after the = signs.  lsusb shows:
>>>>
>>>> Bus 003 Device 002: ID 24c0:0003 Chaney Instrument Model 01036 weather 
>>>> center
>>>>
>>>> and raspinfo reports:
>>>>
>>>> /:  Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/2p, 480M
>>>>     |__ Port 1: Dev 2, If 0, Class=Human Interface Device, Driver=, 1.5M
>>>>     |__ Port 2: Dev 3, If 0, Class=Human Interface Device, 
>>>> Driver=usbhid, 1.5M
>>>>
>>>> I see this in dmesg output:
>>>> [    0.969754] usb 3-1: New USB device found, idVendor=24c0, 
>>>> idProduct=0003, bcdDevice= 0.20
>>>> [    0.969758] usb 3-1: New USB device strings: Mfr=0, Product=2, 
>>>> SerialNumber=0
>>>> [    0.969760] usb 3-1: Product: Chaney Instrument
>>>> [    0.984789] usbhid 3-1:1.0: can't add hid device: -22
>>>> [    0.989868] usbhid 3-1:1.0: probe with driver usbhid failed with 
>>>> error -22
>>>>
>>>> The model of the Acurite device is ostensibly 01536.  Since the lsusb 
>>>> output shows 01036, I also tried setting that in the config with no 
>>>> difference.  I have tried multiple USB ports.
>>>>
>>>> Any suggestions would be appreciated.  More details appended at the end.
>>>>
>>>> Thank you.
>>>>
>>>> --Jim--
>>>>
>>>> ***** Portion of weewx.conf *****
>>>>
>>>> #   This section is for information about the station.
>>>>
>>>> [Station]
>>>>     
>>>>     # Description of the station location, such as your town.
>>>>     location = "Where I live"
>>>>     
>>>>     ...
>>>>     
>>>>     # Set to type of station hardware. There must be a corresponding 
>>>> stanza
>>>>     # in this file, which includes a value for the 'driver' option.
>>>>     station_type = AcuRite
>>>>     
>>>>     ...
>>>>
>>>>
>>>> ##############################################################################
>>>>
>>>> [AcuRite]
>>>>     # This section is for AcuRite weather stations.
>>>>     
>>>>     # The station model, e.g., 'AcuRite 01025' or 'AcuRite 02032C'
>>>>     # (I also tried AcuRite 01536)
>>>>     model = AcuRite 01036
>>>>     
>>>>     # The driver to use:
>>>>     driver = weewx.drivers.acurite
>>>>
>>>> ***** Section of log file *****
>>>>
>>>> Jul 15 11:50:10 capecod weewxd[3985]: DEBUG weewx.engine: Finished 
>>>> loading service weewx.engine.StdReport
>>>> Jul 15 11:50:10 capecod weewxd[3985]: INFO __main__: Starting up weewx 
>>>> version 5.1.0
>>>> Jul 15 11:50:10 capecod weewxd[3985]: DEBUG weewx.engine: Station does 
>>>> not support reading the time
>>>> Jul 15 11:50:10 capecod weewxd[3985]: INFO weewx.engine: Using binding 
>>>> 'wx_binding' to database 'weewx.sdb'
>>>> Jul 15 11:50:10 capecod weewxd[3985]: INFO weewx.manager: Starting 
>>>> backfill of daily summaries
>>>> Jul 15 11:50:10 capecod weewxd[3985]: INFO weewx.manager: Daily 
>>>> summaries up to date
>>>> Jul 15 11:50:10 capecod weewxd[3985]: INFO weewx.engine: Starting main 
>>>> packet loop.
>>>> Jul 15 11:50:10 capecod weewxd[3985]: DEBUG weewx.drivers.acurite: 
>>>> Found station at bus= device=
>>>> Jul 15 11:50:10 capecod weewxd[3985]: ERROR weewx.drivers.acurite: 
>>>> Failed attempt 1 of 10 to get LOOP data: [Errno 5] Input/Output Error
>>>> Jul 15 11:50:40 capecod weewxd[3985]: DEBUG weewx.drivers.acurite: 
>>>> Found station at bus= device=
>>>> Jul 15 11:50:41 capecod weewxd[3985]: ERROR weewx.drivers.acurite: 
>>>> Failed attempt 2 of 10 to get LOOP data: [Errno 110] Operation timed out
>>>> (this repeats for 10 attempts and then stops the service and then 
>>>> restarts)
>>>>
>>>> ***** Hardware / Software *****
>>>>
>>>> The Acurite is model 01536 (but lsusb reports 01036).
>>>>
>>>> The Raspberry Pi is is a Pi 5 Model B Rev 1.1.
>>>>
>>>> It is running Raspbian bookworm and is up to date as of today.
>>>>
>>>>

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