Udev rules power down

config/99-realsense-libusb.rules

@@ -70,4 +70,7 @@ DRIVER=="hid_sensor*", ATTRS{idVendor}=="8086", ATTRS{idProduct}=="0b5b", RUN+="
 KERNEL=="iio*", ATTRS{idVendor}=="8086", ATTRS{idProduct}=="0b5c", MODE:="0777", GROUP:="plugdev", RUN+="/bin/sh -c 'chmod -R 0777 /sys/%p'"
 DRIVER=="hid_sensor*", ATTRS{idVendor}=="8086", ATTRS{idProduct}=="0b5c", RUN+="/bin/sh -c ' chmod -R 0777 /sys/%p && chmod 0777 /dev/%k'"
 KERNEL=="iio*", ATTRS{idVendor}=="8086", ATTRS{idProduct}=="0b64", MODE:="0777", GROUP:="plugdev", RUN+="/bin/sh -c 'chmod -R 0777 /sys/%p'"
-DRIVER=="hid_sensor*", ATTRS{idVendor}=="8086", ATTRS{idProduct}=="0b64", RUN+="/bin/sh -c ' chmod -R 0777 /sys/%p && chmod 0777 /dev/%k'"
+DRIVER=="hid_sensor*", ATTRS{idVendor}=="8086", ATTRS{idProduct}=="0b64", RUN+="/bin/sh -c ' chmod -R 0777 /sys/%p && chmod 0777 /dev/%k'"
+
+# For products with motion_module, if (kernels is 4.15 and up) and (device name is "accel_3d") wait, in another process, until (enable flag is set to 1 or 200 mSec passed) and then set it to 0.
+KERNEL=="iio*", ATTRS{idVendor}=="8086", ATTRS{idProduct}=="0ad5|0afe|0aff|0b00|0b01|0b3a|0b3d|0b64", RUN+="/bin/sh -c '(major=`uname -r | cut -d \".\" -f1` && minor=`uname -r | cut -d \".\" -f2` && (([ $major -eq 4 ] && [ $minor -ge 15 ]) || [ $major -ge 5 ])) && (enamefile=/sys/%p/name && [ `cat $enamefile` = \"accel_3d\" ]) && enfile=/sys/%p/buffer/enable && echo \"COUNTER=0; while [ \$COUNTER -lt 20 ] && grep -q 0 $enfile; do sleep 0.01; COUNTER=\$((COUNTER+1)); done && echo 0 > $enfile\" | at now'"

doc/installation.md

@@ -57,6 +57,8 @@ The scripts and commands below invoke `wget, git, add-apt-repository` which may
   3. Run Intel Realsense permissions script from librealsense root directory:<br />
     `./scripts/setup_udev_rules.sh`  
     <br />
+    *Notice: One can always remove permissions by running:*
+    *`./scripts/setup_udev_rules.sh --uninstall`*
 
   4. Build and apply patched kernel modules for: <br />
     * **Ubuntu 14/16/18 with LTS kernel**

scripts/setup_udev_rules.sh

@@ -1,20 +1,46 @@
 #!/bin/bash -e
 
-echo "Setting-up permissions for RealSense devices"
+# USAGE:
+# Normal usecase - without any parameters.
+#
+# [optional parameters]:
+# --uninstall : remove permissions for realsense devices.
+
+install=true
+
+for var in "$@"
+do
+    if [ "$var" = "--uninstall" ]; then
+        install=false
+    fi
+done
+
+if [ "$install" = true ]; then
+    echo "Setting-up permissions for RealSense devices"
+else
+    echo "Remove permissions for RealSense devices"
+fi
 
 exec 3>&2
 exec 2> /dev/null
 con_dev=$(ls /dev/video* | wc -l)
 exec 2>&3
 
-if [ $con_dev -ne 0 ];
-then
-	echo -e "\e[32m"
-	read -p "Remove all RealSense cameras attached. Hit any key when ready"
-	echo -e "\e[0m"
+if [ "$install" = true ]; then
+    if [ $con_dev -ne 0 ];
+    then
+        echo -e "\e[32m"
+        read -p "Remove all RealSense cameras attached. Hit any key when ready"
+        echo -e "\e[0m"
+    fi
+    sudo cp config/99-realsense-libusb.rules /etc/udev/rules.d/
+else
+    sudo rm /etc/udev/rules.d/99-realsense-libusb.rules
 fi
 
-sudo cp config/99-realsense-libusb.rules /etc/udev/rules.d/
 sudo udevadm control --reload-rules && udevadm trigger
-
-echo "udev-rules successfully installed"
+if [ "$install" = true ]; then
+    echo "udev-rules successfully installed"
+else
+    echo "udev-rules successfully uninstalled"
+fi