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Add udev rule.

pull/99/head
Paul Philippov 2023-06-15 17:53:48 -04:00 committed by GitHub
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commit 946c500a34
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en/hardware-programmer-ch341a-voltage-fix.md
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@ -35,6 +35,31 @@ of CH341A IC through 5V pin connector on the header.
![](../images/hardware-ch341a-hack-5.webp)
### Troubleshooting
```
libusb: error [get_usbfs_fd] libusb couldn't open USB device /dev/bus/usb/001/003, errno=13
libusb: error [get_usbfs_fd] libusb requires write access to USB device nodes
```
If you get an error message like this running a programming software, you need to adjust
permissions on the USB port for that device.
Create a udev rule file
```
sudo vi /etc/udev/rules.d/99-ch341a-prog.rules
```
add the following content in the file:
```
# udev rule that sets permissions for CH341A programmer in Linux.
# Put this file in /etc/udev/rules.d and reload udev rules or reboot to install
SUBSYSTEM=="usb", ATTRS{idVendor}=="1a86", ATTRS{idProduct}=="5512", MODE="0666"
```
save the file, reload udev
```
sudo udevadm control --reload-rules
sudo udevadm trigger
```
then unplug the programmer and plug it back in a USB port.
### Software