Merge pull request #157 from IGEL-Community:citrix-usb-scanner-settings

citrix usb scanner settings

docs/Docs/HOWTO-UCC.md

@@ -366,3 +366,29 @@ ica.wfclient.hdxh264inputenabled - enabled
 ica.wfclient.hdxwebcamenabled - enabled
 sessions.pnlogin0.gstreamer_version  either
 ```
+
+-----
+
+## USB Scanner with Citrix
+
+- [USB Scanner Is Not Being Automatically Redirected Within ICA Sessions](https://support.citrix.com/s/article/CTX330881-usb-scanner-is-not-being-automatically-redirected-within-ica-sessions?language=en_US)
+
+### Make sure the Citrix Policy Settings below are enabled and are being applied to the correct Machine Object of your Citrix environment:
+
+- Client TWAIN Device Redirection > Allowed => ok checked
+- Client USB Device Redirection > Allowed => ok checked 
+- Client Plug and Play Device Redirection > ok checked 
+- The Scanner Drivers must be up to date within the Local Endpoint using Workspace App. => NOK : Driver none with IGEL OS
+
+### Make sure the following settings are enabled within “Citrix Workspace Preferences > Connections > Generic USB Devices”:
+
+- When a session starts, connect devices automatically
+- When a new device is connected while a session is running, connect the device automatically
+
+### USB always on (Printer, Scanner, etc.)
+
+- System > Firmware Customization > Custom Commands > Desktop
+
+```bash linenums="1"
+echo on | tee /sys/bus/usb/devices/*/power/level > /dev/null
+```