Update Readme.md

README.md

@@ -1,7 +1,38 @@
 # k380-function-keys-conf
-Make function keys on Logitech k380 bluetooth keyboard default
+Make function keys default on Logitech k380 bluetooth keyboard.
 
-based on
+## Instructions
+
+1) First install `gcc`. On Ubuntu run:
+```
+sudo apt install gcc
+```
+2) Download installation files.
+
+3) Connect your K380 keyboard via bluetooth to your computer.
+
+4) Run `build.sh`
+
+```
+./build.sh
+```
+
+5) To switch keyboard's upper keys to F-keys run:
+
+```
+sudo ./k380_conf -d /dev/hidrawX -f on
+```
+Where X is number of your keyboard hidraw interface. Possibly `0, 1, 2, 3`.
+
+### Switch keys to F-keys automatically
+
+Follow instructions your received when you built `k380_conf`:
+```
+sudo cp /your-build-path/80-k380.rules /etc/udev/rules.d/ && sudo udevadm control --reload
+```
+Now, when you reconnect your keyboard it will be automatically switched to F-keys mode.
+
+## Based on
 
 <http://www.trial-n-error.de/posts/2012/12/31/logitech-k810-keyboard-configurator/>
 

build.sh

@@ -10,5 +10,5 @@ UDEV_RULES="$BUILD_PATH/80-k380.rules"
 
 echo "ACTION==\"add\", KERNEL==\"hidraw[0-9]*\", RUN+=\"$FN_ON /dev/%k\"" > $UDEV_RULES
 echo "To automatically turn on fn using udev rules, run the following command"
-echo "    sudo cp $UDEV_RULES /etc/udev/rules.d/ && sudo udevadm control -R"
+echo "    sudo cp $UDEV_RULES /etc/udev/rules.d/ && sudo udevadm control --reload"
 

fn_on.sh

@@ -2,9 +2,10 @@
 
 
 TOOL="$(dirname $0)/k380_conf"
+# Check if device is our keyboard: 046D:B342
 DEV="$(ls /sys/class/hidraw/ -l | grep 046D:B342 | grep -o 'hidraw[0-9]*$')"
 
-
+# Run if parameter $1 is nothing or it is k380 keyboard
 if test -n "$DEV" && (test -z "$1" || test "/dev/$DEV" = "$1")
 then
     echo "Found K380 at $DEV"