docs: Mention USB permissions in Getting Started
Adds a quick note to the "Running Tests on a Device" section that
a user may need to do some environment specific work to ensure
they have adequate USB device permissions before continuing.
Change-Id: I640b964646fde9178a9661cfc72eff7d911bdcbe
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/13824
Reviewed-by: Wyatt Hepler <hepler@google.com>
Commit-Queue: Ewout van Bekkum <ewout@google.com>
diff --git a/docs/getting_started.md b/docs/getting_started.md
index 1c3adbd..4a968c0 100644
--- a/docs/getting_started.md
+++ b/docs/getting_started.md
@@ -271,7 +271,10 @@
Connect any number of STM32F429I-DISC1 boards to your computer using the mini
USB port on the board (**not** the micro USB). Pigweed will automatically detect
the boards and distribute the tests across the devices. More boards = faster
-tests!
+tests! Keep in mind that you may have to make some environment specific updates
+to ensure you have permissions to use the USB device. For example, on Linux you
+may need to update your udev rules and ensure you're in the plugdev and dailout
+groups.
