10000 HS103: Unable to query the device: unpack requires a buffer of 4 bytes · Issue #187 · python-kasa/python-kasa · GitHub
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NateRiz opened this issue Aug 4, 2021 · 3 comments
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HS103: Unable to query the device: unpack requires a buffer of 4 bytes #187

NateRiz opened this issue Aug 4, 2021 · 3 comments

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@NateRiz
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NateRiz commented Aug 4, 2021 •
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With an HS103 on a local network. Tested with Raspbian/Py3.7 and Windows/Py3.8. Both come back with:

Traceback (most recent call last):
  File "/home/pi/.local/lib/python3.7/site-packages/kasa/protocol.py", line 64, in query
    length = struct.unpack(">I", chunk[0:4])[0]
struct.error: unpack requires a buffer of 4 bytes

Worth noting that the hs103 can be discovered.
@rytilahti
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Could you try if it works with the newest release? If not, this needs more input in form of a packet trace (tcpdump, wireshark).

@adamm
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adamm commented Dec 29, 2021

I can confirm my HS103(US) works perfectly on kasa v0.4.0

@rytilahti
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Thanks for the report @adamm, let's close this then. @NateRiz if it's still not working for you, it seems that your device is not sending enough data for some reason and that should be investigated further. If that's the case, please try to make a packet trace (e.g., with wireshark) and re-open this issue with some details regarding to what is being send by the device as response to that request.

rytilahti added a commit to rytilahti/python-kasa that referenced this issue Jan 14, 2022
@rytilahti
Prepare 0.4.1
3189cb6 
This minor release fixes issues that were found after homeassistant integration got converted over from pyhs100.

[Full Changelog](python-kasa/python-kasa@0.4.0...0.4.1)

**Implemented enhancements:**

- Add --type option to cli [\python-kasa#269](python-kasa#269) ([rytilahti](https://github.com/rytilahti))
- Minor improvements to onboarding doc [\python-kasa#264](python-kasa#264) ([rytilahti](https://github.com/rytilahti))
- Add fixture file for KL135 [\python-kasa#263](python-kasa#263) ([ErikSGross](https://github.com/ErikSGross))
- Add KL135 color temperature range [\python-kasa#256](python-kasa#256) ([rytilahti](https://github.com/rytilahti))
- Add py.typed to flag that the package is typed [\python-kasa#251](python-kasa#251) ([rytilahti](https://github.com/rytilahti))
- Add script to check supported devices, update README [\python-kasa#242](python-kasa#242) ([rytilahti](https://github.com/rytilahti))
- Add perftest to devtools [\python-kasa#236](python-kasa#236) ([rytilahti](https://github.com/rytilahti))
- Add KP401 US fixture [\python-kasa#234](python-kasa#234) ([bdraco](https://github.com/bdraco))
- Add KL60 US KP105 UK fixture [\python-kasa#233](python-kasa#233) ([bdraco](https://github.com/bdraco))
- Make cli interface more consistent [\python-kasa#232](python-kasa#232) ([rytilahti](https://github.com/rytilahti))
- Add KL400, KL50 fixtures [\python-kasa#231](python-kasa#231) ([bdraco](https://github.com/bdraco))
- Add fixture for newer KP400 firmware [\python-kasa#227](python-kasa#227) ([bdraco](https://github.com/bdraco))
- Switch to poetry-core [\python-kasa#226](python-kasa#226) ([fabaff](https://github.com/fabaff))
- Add fixtures for LB110, KL110, EP40, KL430, KP115 [\python-kasa#224](python-kasa#224) ([bdraco](https://github.com/bdraco))

**Fixed bugs:**

- Discovery on WSL results in OSError: \[Errno 22\] Invalid argument [\python-kasa#246](python-kasa#246)
- New firmware for HS103 blocking local access? [\python-kasa#42](python-kasa#42)
- Pin mistune to \<2.0.0 to fix doc builds [\python-kasa#270](python-kasa#270) ([rytilahti](https://github.com/rytilahti))
- Catch exceptions raised on unknown devices during discovery [\python-kasa#240](python-kasa#240) ([rytilahti](https://github.com/rytilahti))

**Closed issues:**

- Control device with alias via python api? [\python-kasa#285](python-kasa#285)
- Can't install using pip install python-kasa [\python-kasa#255](python-kasa#255)
- Kasa Smart Bulb KL135 - Unknown color temperature range error [\python-kasa#252](python-kasa#252)
- KL400 Support [\python-kasa#247](python-kasa#247)
- Cloud support? [\python-kasa#245](python-kasa#245)
- Support for kp401 [\python-kasa#241](python-kasa#241)
- LB130 Bulb stopped working [\python-kasa#237](python-kasa#237)
- Unable to constantly query bulb in loop [\python-kasa#225](python-kasa#225)
- HS103: Unable to query the device: unpack requires a buffer of 4 bytes [\python-kasa#187](python-kasa#187)
- Help request - query value [\python-kasa#171](python-kasa#171)
- Can't Discover Devices [\python-kasa#164](python-kasa#164)
- Concurrency performance question [\python-kasa#110](python-kasa#110)
- Define the port by self? [\python-kasa#108](python-kasa#108)
- Convert homeassistant integration to use the library [\python-kasa#9](python-kasa#9)

**Merged pull requests:**

- Publish to pypi on github release published [\python-kasa#287](python-kasa#287) ([rytilahti](https://github.com/rytilahti))
- Relax asyncclick version requirement [\python-kasa#286](python-kasa#286) ([rytilahti](https://github.com/rytilahti))
- Do not crash on discovery on WSL [\python-kasa#283](python-kasa#283) ([rytilahti](https://github.com/rytilahti))
- Add python 3.10 to CI [\python-kasa#279](python-kasa#279) ([rytilahti](https://github.com/rytilahti))
- Use codecov-action@v2 for CI [\python-kasa#277](python-kasa#277) ([rytilahti](https://github.com/rytilahti))
- Add coverage\[toml\] dependency to fix coverage on CI [\python-kasa#271](python-kasa#271) ([rytilahti](https://github.com/rytilahti))
- Allow publish on test pypi workflow to fail [\python-kasa#248](python-kasa#248) ([rytilahti](https://github.com/rytilahti))
@rytilahti rytilahti mentioned this issue Jan 14, 2022
Merged
rytilahti added a commit that referenced this issue Jan 14, 2022
@rytilahti
Prepare 0.4.1 (#288)
b4036e5 
This minor release fixes issues that were found after homeassistant integration got converted over from pyhs100.

[Full Changelog](0.4.0...0.4.1)

**Implemented enhancements:**

- Add --type option to cli [\#269](#269) ([rytilahti](https://github.com/rytilahti))
- Minor improvements to onboarding doc [\#264](#264) ([rytilahti](https://github.com/rytilahti))
- Add fixture file for KL135 [\#263](#263) ([ErikSGross](https://github.com/ErikSGross))
- Add KL135 color temperature range [\#256](#256) ([rytilahti](https://github.com/rytilahti))
- Add py.typed to flag that the package is typed [\#251](#251) ([rytilahti](https://github.com/rytilahti))
- Add script to check supported devices, update README [\#242](#242) ([rytilahti](https://github.com/rytilahti))
- Add perftest to devtools [\#236](#236) ([rytilahti](https://github.com/rytilahti))
- Add KP401 US fixture [\#234](#234) ([bdraco](https://github.com/bdraco))
- Add KL60 US KP105 UK fixture [\#233](#233) ([bdraco](https://github.com/bdraco))
- Make cli interface more consistent [\#232](#232) ([rytilahti](https://github.com/rytilahti))
- Add KL400, KL50 fixtures [\#231](#231) ([bdraco](https://github.com/bdraco))
- Add fixture for newer KP400 firmware [\#227](#227) ([bdraco](https://github.com/bdraco))
- Switch to poetry-core [\#226](#226) ([fabaff](https://github.com/fabaff))
- Add fixtures for LB110, KL110, EP40, KL430, KP115 [\#224](#224) ([bdraco](https://github.com/bdraco))

**Fixed bugs:**

- Discovery on WSL results in OSError: \[Errno 22\] Invalid argument [\#246](#246)
- New firmware for HS103 blocking local access? [\#42](#42)
- Pin mistune to \<2.0.0 to fix doc builds [\#270](#270) ([rytilahti](https://github.com/rytilahti))
- Catch exceptions raised on unknown devices during discovery [\#240](#240) ([rytilahti](https://github.com/rytilahti))

**Closed issues:**

- Control device with alias via python api? [\#285](#285)
- Can't install using pip install python-kasa [\#255](#255)
- Kasa Smart Bulb KL135 - Unknown color temperature range error [\#252](#252)
- KL400 Support [\#247](#247)
- Cloud support? [\#245](#245)
- Support for kp401 [\#241](#241)
- LB130 Bulb stopped working [\#237](#237)
- Unable to constantly query bulb in loop [\#225](#225)
- HS103: Unable to query the device: unpack requires a buffer of 4 bytes [\#187](#187)
- Help request - query value [\#171](#171)
- Can't Discover Devices [\#164](#164)
- Concurrency performance question [\#110](#110)
- Define the port by self? [\#108](#108)
- Convert homeassistant integration to use the library [\#9](#9)

**Merged pull requests:**

- Publish to pypi on github release published [\#287](#287) ([rytilahti](https://github.com/rytilahti))
- Relax asyncclick version requirement [\#286](#286) ([rytilahti](https://github.com/rytilahti))
- Do not crash on discovery on WSL [\#283](#283) ([rytilahti](https://github.com/rytilahti))
- Add python 3.10 to CI [\#279](#279) ([rytilahti](https://github.com/rytilahti))
- Use codecov-action@v2 for CI [\#277](#277) ([rytilahti](https://github.com/rytilahti))
- Add coverage\[toml\] dependency to fix coverage on CI [\#271](#271) ([rytilahti](https://github.com/rytilahti))
- Allow publish on test pypi workflow to fail [\#248](#248) ([rytilahti](https://github.com/rytilahti))
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@adamm @rytilahti @NateRiz
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