Update uses.mdx

Added brief instructions to find out necessary group for device permissions
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Nicholas Hadaller 2022-07-20 22:30:38 -07:00 committed by GitHub
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@ -125,6 +125,13 @@ This indicates an OS permission problem for access by your user to the USB seria
sudo usermod -a -G dialout <username>
```
If the adding the user to the dialout group does not work, you can use the following command to find out which group to add your user to.
In this example (from Arch Linux) the group was "uucp"
```shell
ls -al /dev/ttyACM0
crw-rw---- 1 root uucp 166, 0 Jul 20 21:52 /dev/ttyACM0
```
### Mac OS Big Sur
There is a problem with Big Sur and pyserial. The workaround is to install a newer version of pyserial: