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docs: Fix broken links in RPi_microcontroller.md 

Also add a note regarding "Permission denied" errors.

Signed-off-by:  Eric Callahan <arksine.code@gmail.com>
This commit is contained in:
Arksine 2020-07-03 07:20:38 -04:00 committed by KevinOConnor
parent 342a230984
commit 09a3d018a8
1 changed files with 9 additions and 2 deletions
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docs/RPi_microcontroller.md
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@ -42,13 +42,20 @@ make flash
sudo service klipper start sudo service klipper start
``` ```
If klippy.log reports a "Permission denied" error when attempting to connect
to `/tmp/klipper_host_mcu` then you need to add your user to the tty group.
The following command will add the "pi" user to the tty group:
```
sudo usermod -a -G tty pi
```
Remaining configuration Remaining configuration
======================= =======================
Complete the installation by configuring Klipper secondary MCU Complete the installation by configuring Klipper secondary MCU
following the instructions in following the instructions in
[RasperryPi example config](../config/example-rasperry-pi.cfg) and [RaspberryPi sample config](../config/sample-raspberry-pi.cfg) and
[Multi MCU example config](../config/example-multi-mcu.cfg). [Multi MCU sample config](../config/sample-multi-mcu.cfg).
Optional: Identify the correct gpiochip Optional: Identify the correct gpiochip
======================================= =======================================