Fixing Flipper Zero WiFi Dev Board TTY Ownership Issue
This article will cover the steps required to fix the Flipper Zero WiFi Dev Board TTY ownership issue where the device node, such as /dev/ttyACM0, is owned by the dialout group.
Background
The Flipper Zero WiFi Dev Board is a popular multi-tool device that can be used for a variety of purposes, including hacking and penetration testing. In order to interact with the device, a TTY (teletype) device node is created in the /dev directory, which is owned by the dialout group by default. This can cause issues when trying to access the device as a non-member of the dialout group.
Steps to Fix the Issue
To fix the Flipper Zero WiFi Dev Board TTY ownership issue, follow these steps:
- Open a terminal and check the ownership of the TTY device node:
$ ls -l /dev/ttyACM0
crw-rw---- 1 root dialout 166, 0 Jan 13 11:12 /dev/ttyACM0
- If the TTY device node is owned by the dialout group, you can change the ownership to your user account by using the following command:
$ sudo chown :tty /dev/ttyACM0
- Verify that the ownership of the TTY device node has been changed:
$ ls -l /dev/ttyACM0
crw-rw---- 1 tty 166, 0 Jan 13 11:12 /dev/ttyACM0
Adding Your User Account to the Dialout Group
If you would prefer to add your user account to the dialout group instead of changing the ownership of the TTY device node, you can use the following command:
$ sudo usermod -a -G dialout
Once you have added your user account to the dialout group, you will be able to access the TTY device node without having to change the ownership.
This article has covered the steps required to fix the Flipper Zero WiFi Dev Board TTY ownership issue. By either changing the ownership of the TTY device node or adding your user account to the dialout group, you will be able to access the device without encountering ownership issues.