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Merge pull request #1302 from BjoernLange/pinecil-flashing-troubleshooting-usb-autosuspend

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Add USB autosuspend to troubleshooting for Pinecil
This commit is contained in:
Ben V. Brown
2022-05-18 08:28:39 +10:00
committed by GitHub
parent e6f1eb6729 e562c3a9f1
commit 648347c6b2
1 changed files with 24 additions and 0 deletions
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Documentation/Flashing.md
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@@ -133,6 +133,30 @@ dfu-util -D Pinecil_EN.dfu -a 0
- Switch to a different PC/Laptop and use different ports. USB-C ports are recommended but some have also reported having a fussy C port.
- Hold down the (-) button for the entire firmware update, do not release until near the end.
- `DC Low` message: a pc/laptop cannot fully power Pinecil, it generally can only get 5 V (non-PD) to communicate for firmware updates and Pinecil will report 'DC Low'. This is normal.
- If `dfu-util` aborts with an error like
```
dfu-util: Cannot open DFU device 28e9:0189 found on devnum 42 (LIBUSB_ERROR_IO)
```
and `dmesg` reports USB errors like these
```
kernel: usb 1-1: reset full-speed USB device number 42 using xhci_hcd
kernel: usb 1-1: device descriptor read/64, error -71
kernel: usb 1-1: device descriptor read/64, error -71
kernel: usb 1-1: reset full-speed USB device number 42 using xhci_hcd
kernel: usb 1-1: device descriptor read/64, error -71
kernel: usb 1-1: device descriptor read/64, error -71
kernel: usb 1-1: reset full-speed USB device number 42 using xhci_hcd
kernel: usb 1-1: Device not responding to setup address.
kernel: usb 1-1: Device not responding to setup address.
kernel: usb 1-1: device not accepting address 42, error -71
```
then try to disable USB autosuspend.
This can be done with a set of udev rules specifically for the Pinecil:
```udev
SUBSYSTEM=="usb", ATTR{idVendor}=="28e9", ATTR{idProduct}=="0189", MODE:="0660"
SUBSYSTEM=="usb", ATTR{idVendor}=="28e9", ATTR{idProduct}=="0189", GROUP="plugdev"
SUBSYSTEM=="usb", ATTR{idVendor}=="28e9", ATTR{idProduct}=="0189", TEST=="power/control", ATTR{power/control}="on"
```
## Windows