Serial Console: Difference between revisions

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+== Use serial interface as TTY ==
+To use a serial device <code>ttyS0</code> as a TTY to log into the device, you have to tell the kernel and you boot loader about the serial configuration.
+An example for GRUB bootloader:
+  boot.kernelParams = [ "console=ttyS0,115200n8" ];
+  boot.loader.grub.extraConfig = "
+    serial --speed=115200 --unit=0 --word=8 --parity=no --stop=1
+    terminal_input serial
+    terminal_output serial
+  ";
+== Unprivileged access to serial device ==
+Serial devices under NixOS are created with the group <code>dialout</code> by default.
+All users that are part of the group <code>dialout</code> can access serial devices.
+Add a user to group <code>dialout</code>:
+    users.users.<name>.extraGroups = [ "dialout" ];
 == Tips ==