|
|
|||||||
|
|
|||||||
|
Welcome to UPDD Android platform specific installation instructions and related notes for UPDD version 5.2.x.
UPDD provides a touch solution for Android systems. This implementation supports the Android operating system on ARM7 hardware. This may be provided for other versions of Android and target processors if there is a demand for this. Functionality is broadly similar to the UPDD desktop variants; with the following main variations.
1) There are no GUI based console and test utilities. The UPDD command line utility is however included as a means to adjust the software settings. 2) Extension features provided by the UPDD Daemon task are not available. Functions supported by this UPDD module will be added as and when required. 3) Only USB devices are supported.
These notes should be followed to install the UPDD pointer device driver on Android platforms:
Driver build history
License NoticeThe software is licensed software and as such requires a license per system when the production version of the software is installed. Production software is either supplied by pointer device manufacturers or system integrators (who are entitled to distribute the driver) or is available directly from Touch-Base sales. Evaluation version restrictionsEvaluation software, which can be supplied from Touch-Base, is mainly used to test the touch function is working and has certain restrictions. After 100 touches or 24 hours use the touch screen will stop working. DeliverablesThe software will be delivered in a tgz file named android_armeabi-v7a_05_02_NNNN.tgz; where NNNN is the UPDD software build number and is normally downloaded from a HTTP download link as sent in an email.
System Requirements
Technical considerationsThe
touch interface utilises the uinput interface. uinput is a feature that
allows access to the kernel’s input subsystem from user mode. Unlike UPDD
drivers for other Linux variants this is the only mode supported. The software is implemented using the NDK, i.e. with native code and is therefore bound to a specific architecture. In theory later versions of Android on the same processor architecture should be supported; but this is subject to verification. Software deliveryIn this environment, UPDD is supplied as a number of separate components. Touch-Base utilises virus detection software on all of our systems but recipients of the software should pass the files through their own virus checking software before proceeding with installation. ComponentsThe UPDD Android package consists of the following components and indicates their location after install:
Installation
The software is delivered in a tgz file named android_armeabi-v7a_05_02_NNNN.tgz; where NNNN is the UPDD software build number.
The following is a guide to installing the software; expert users can adapt this procedure as required, for example to install the software in different locations.
Note: the install script provided performs certain steps based on typical Android devices. Given the potential risk of executing incorrect commands as a root user you should check that the steps this scripts takes; which are detailed in a later section are valid for you device
If you are unsure you should review the script and execute the commands contained one at a time.
The example process is as follows.
1) Copy the delivered file to a USB stick. 2) Plug the stick into the Android device. 3) Open your terminal emulator. 4) Enter the command "su" to gain superuser privileges. NB you will have needed to "root" your device to allow this. Also note that it is important to take care when working as superuser as you can damage the system with incorrect commands. 5) Navigate to the usb drive using the command
cd /mnt/media/<drive name>
note that if you type "cd /mnt/media/" then hit the TAB key Android will list the available options, typically pick one starting USB. If you type the first few letters of the name and hit TAB again Android will complete this for you.
6) After noting the cautionary notes above extract and execute the install script using the commands
mkdir –p /system/vendor/updd/install cp <delivered file name>.tgz /system/vendor/updd/install cd /system/vendor/updd/install tar –xzvf <delivered file name>.tgz chmod 777 install.sh ./install.sh
The install script performs the following actions.
1) Sets the file system to be writable. 2) Creates the folder /system/vendor/updd 3) Copies the driver and related files to /system/vendor/updd 4) Marks the executable files tbupddwu and tbutils executable 5) Creates the folder /system/vendor/updd/lib 6) Copies the associated library files to /system/vendor/updd/lib 7) Creates a symbolic link to reference libACE by version number 8) Creates the folder /data/data/updd 9) Copies the driver settings to /data/data/updd/tbupdd.ini 10) Creates a backup of /init.rc as /system/vendor/updd/init.rc.orig 11) Uses the command “tbutils fixini” to prepare the settings file for use (adds a checksum to the file) 12) Sets the file system back to read only.
7)
It
might be useful to refer to the diagnostics section at this point to check
that all embedded components are working as expected. 8) In order
to use the driver the integrator must arrange for the process to be launched
at startup. The exact method to do this varies, but generally adding the line
9) Restart the system.
10) In your Android file viewer navigate to the USB drive and click tbcalib.apk and follow the prompts to install the calibration program.
Notes about script upddenv
In this document there is reference to script upddenv which is used to invoke UPDD utilities, specifically the command line utility tbutils. This script is use because UPDD components use shared libraries. Given these libs might conflict with files shared with other applications a private copy is used and these are not stored in the system library path ($LD_LIBRARY_PATH). The upddenv script prepares the environment for the current session only to include the path for such libraries. This allows an easy way to use UPDD Llinux command line tools, especially tbutils.
UninstallTo uninstall the software you need to manually reverse the installation procedure as follows: There is no single uninstall utility; this is because Android provides a system to manage apps; and this should be used to uninstall the calibration app.
To uninstall the driver itself open the terminal emulator and enter these commands su mount -o remount,rw / mount -o remount,rw /system rm –rf /system/vendor/updd rm –rf /data/data/updd
the following step is optional, see note below cd / cp /system/vendor/updd/init.rc.orig /init.rc mount o remount,ro /system mount o remount,ro /
Note, only execute the command "cp /system/vendor/updd/init.rc.orig /init.rc " if you are sure no changes have been made to init.rc since the driver was installed. Otherwise use an editor to remove the updd entries, or simply leave them in place; for most practical purposes this will do no harm.
Using the supported programsUtilities
CalibrationCalibration is a procedure used to align the touch screen with the graphical display area or desktop segment. When using mouse emulation interface the mouse cursor should normally position itself under the point of contact. If this is not the case then calibration will be required. Command Line UtilityThis utility is described in a separate document and can be used to list driver and system information and retrieve / change driver settings. The utility is located in folder /system/vendor/updd.
The driver is custom built for specific touch devices and will only work if an appropriate device is connected to the system. For USB the device is identified via the USB vendor and product id. The ‘tbutils list’ command will indicate if a device has been detected. The tbutils controllers command will indicate if a device is supported.
Other commands can be used to show the device is working , such as the ‘tbutils caltouches’ to show calibrated touch data received from the controller:
Diagnostics / troubleshooting
This section lists a few useful commands to check everything is working as required or identify the problem area.
Running the driver. Only do this if you have run the installation steps above and NOT restarted the system or you suspect the driver is not running. After a restart the driver should be working.
cd /system/vendor/updd ./startupdd
The terminal emulator will now be running the driver and will not respond. You should open another terminal emulator window to enter other commands.
Checking that the driver is activated and the API programs are able to communicate with the driver.
cd /system/vendor/updd ./upddenv tbutils reload
If all is okay you should see no response and the terminal emulator should return to the prompt.
You
might see an error at this point. For example "unable to open
connection to driver suggests that the driver is not running. If you have modified the system to start the driver check this is running as expected. i.e if you modified init.rc; you should start by checking the entry in this file.
A message "no valid settings found" suggests that the file /data/updd/tbupdd.ini cannot be found in the expected location or that it is invalid.
Checking the touch device is recognised.
Enter the commands
cd /system/vendor/updd ./upddenv tbutils list
If all is okay you will see your touch device listed. If not you could try
cd /system/vendor/updd ./upddenv tbutils listcontrollers
this lists the device types supported by this package.
Diagnostic tracingIf you are having no luck and you need to contact Touch-Base support you will need to follow this process Note: this assumes that nothing else has modified the file init.rc since UPDD was installed. If this is not the case then you must manually remove the UPDD entries from init.rc
1)
execute
the commands
2)
Reinstate
init.rc
3)
Only
if step 1 failed
4)
Start
the driver in debug mode
Current LimitationsUPDD was originally developed for Windows and has since been ported to other OS. When porting to other OS most key updd functionality is supported except where the functionality is OS specific or it is noted in the exclusions below.
The driver uses a background daemon process, aidaemon, to implement some features and monitoring functionality, such as a system tray type menu, monitoring screen rotation etc. Aidaemon is NOT included in the current Android build and therefore any of the supported functions required in an Android environment will need to be implemented on a per request basis. ExclusionsAs discussed above, functions associated with the driver’s daemon process are not support under this OS. Further, these restrictions apply:
ContactFor further information or technical assistance please email the technical support team at technical@touch-base.com
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||