/**************************************************************************** ** ** This file is part of Qt Creator ** ** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies). ** ** Contact: Nokia Corporation (info@qt.nokia.com) ** ** ** GNU Free Documentation License ** ** Alternatively, this file may be used under the terms of the GNU Free ** Documentation License version 1.3 as published by the Free Software ** Foundation and appearing in the file included in the packaging of this ** file. ** ** If you have questions regarding the use of this file, please contact ** Nokia at qt-info@nokia.com. ** ****************************************************************************/ /*! \contentspage index.html \if defined(qcmanual) \previouspage creator-project-qmake-libraries.html \else \previouspage creator-developing-symbian.html \endif \page creator-developing-maemo.html \if defined(qcmanual) \nextpage creator-developing-symbian.html \else \nextpage smartinstaller.html \endif \title Connecting Maemo Devices Maemo 5 (Fremantle) is a software platform developed by Nokia for smartphones. The Maemo 5 SDK provides an open development environment for different applications on top of the Maemo platform. The necessary tools from the Maemo 5 SDK are also included in the \QSDK. The whole tool chain that you need to create, build, debug, run, and deploy Maemo 5 applications is installed and configured when you install the \QSDK. \if defined(qcmanual) Maemo 5 is based on the Linux 2.6 operating system. For more information about the Maemo 5 platform, see \l{http://maemo.org/intro/platform/}{Software Platform} on the Maemo web site. \endif For more information about developing applications for the Maemo 5 platform, select \gui {Help > Index} and look for \gui {Platform Notes}, or see \l{http://doc.qt.nokia.com/qt-maemo/platform-notes-maemo5.html}{Platform Notes - Maemo 5}. \section1 Hardware and Software Requirements To build and run Qt applications for Maemo 5, you need the following: \list \o Nokia N900 device with software update release 1.3 (V20.2010.36-2) or later installed. \if defined(qcmanual) \o MADDE cross-platform Maemo development tool (installed as part of the \QSDK). For more information about MADDE pertaining to its installation, configuration, and deployment on the device, see \l{http://wiki.maemo.org/MADDE}{Introduction to MADDE}. \endif \o Nokia USB drivers. Only needed if you develop on Windows and if you use a USB connection to run applications on the device. The drivers are installed as part of the \QSDK. You can also download them from \l{https://garage.maemo.org/frs/?group_id=801&release_id=2655}{PC Connectivity} on the Maemo web site. Download and install the latest PC_Connectivity_.exe (at the time of writing, PC_Connectivity_0.9.4.exe). \endlist \note The only supported build system for Maemo 5 in Qt Creator is qmake. \section1 Setting Up the Nokia N900 You can connect your device to your development PC using either a USB or WLAN connection. For the device, you need to use a tool called Mad Developer to create the device-side end point for USB and WLAN connections. It provides no diagnostics functions but is essential for creating connections between the device and your development PC. To use a WLAN connection, you must activate WLAN on the device and connect it to the same WLAN as the development PC. The network address is displayed in the Mad Developer. To use a USB connection, you need to set up the Nokia N900 as a network device on the development PC. \note If you plan to connect your development PC to the Nokia N900 only over WLAN, you can ignore the USB-specific parts in the following sections. \section2 Installing and Configuring Mad Developer Install Mad Developer on a device and configure a connection between the development PC and the device. \note The following instructions describe Mad Developer 2.1. The process and text labels might differ on other Mad Developer versions. To install and configure Mad Developer: \list 1 \o On the Nokia N900, select \gui{App Manager > Download} > \gui{Development} > \gui{mad-developer} to install the Mad Developer software package. \o Click \gui {Mad Developer} to start the Mad Developer application. \o To use a WLAN connection, activate WLAN on the device and connect to the same network as the development PC. You can see the network address in the \gui wlan0 field. \o To use a USB connection: \list a \o If you are using Microsoft Windows as development host, you must change the driver loaded for instantiating the connection. In the Mad Developer, select \gui{Manage USB} and select \gui{Load g_ether}. \o To set up the USB settings, click \gui Edit on the \gui usb0 row and confirm by clicking \gui Configure. \note By default, you do not need to make changes. The \gui usb0 row displays the IP address 192.168.2.15. \endlist \o Select \gui{Developer Password} to generate a password for a freshly created user called \bold developer. The password stays valid for as long as the password generation dialog is open. You enter the password when you configure the connection in Qt Creator. \image qtcreator-mad-developer-screenshot.png \endlist \section1 Installing Qt Mobility APIs To develop applications that use the Qt Mobility APIs, you must install the APIs on the devices. The APIs are not available in the Nokia N900 package manager, and therefore, you must install them from the command line as the root user: \list 1 \o On the device, in \gui Programs, select \c {X Terminal} to open a terminal window. \o To install Qt Mobility libraries, enter the following command: \c{/usr/lib/mad-developer/devrootsh apt-get install libqtm-*} \o To confirm the installation, enter: \c Y \o Close the terminal. \endlist \section1 Setting Up Network Connectivity on Development PC Use the network configuration tools on your platform to specify the connection to the device on the development PC. You need to do this only if you use a USB connection. \section2 Linux The device uses the IP address 192.168.2.15 with the subnet 255.255.255.0 for its USB connection by default, so you can create the network interface with a different address inside the same subnet too. \note If you have changed the IP address of the device when configuring Mad Developer, you need to reflect those changes in your development PC USB network settings. Run the following command in a shell as root user: \c{ifconfig usb0 192.168.2.14 up} \section2 Windows When you connect the device to your Windows PC, Windows tries to install a driver for the Linux USB Ethernet connection. In the \gui{Found New Hardware Wizard}, select \gui{No, not this time} in the first dialog and \gui{Install the software automatically} in the second dialog. To specify a network connection: \list 1 \o Open the Network Connections window. \o Select the Linux USB Ethernet connection that is displayed as a new Local Area Connection. \o Edit the \gui {Internet Protocol Version 4 (TCP/IPv4)} properties to specify the IP address for the connection. In the \gui {Use the following IP address} field, enter the following values: \list \o \gui {IP Address}: \bold {192.168.2.14} \o \gui SubnetMask: \bold {255.255.255.0} \o \gui {Default gateway}: leave this field empty \endlist \endlist Depending on your version of Microsoft Windows you may have to unplug and re-plug the Nokia N900 to reload the driver with its configuration accordingly. \section1 Configuring Connections in Qt Creator To be able to run and debug applications on the Maemo emulator and devices, you must set up connections to the emulator and devices in the Qt Creator build and run settings. If you install \QSDK, the connection to the Maemo emulator is configured automatically and you only need to configure a connection to the device. You use a wizard to create the connections. You can edit the settings later in \gui {Tools > Options... > Maemo > Maemo Device Configurations}. \image qtcreator-maemo-device-configurations.png "Maemo Device Configurations dialog" By default, you create the connection as the \e developer user. This protects real user data on the device from getting corrupted during testing. If you write applications that use Qt Mobility APIs, you might want to test them with real user data. To create a connection as a user, specify the \gui Username and \gui Password in Qt Creator. For more information, see \if defined(qcmanual) \l{Testing with User Data}. \else the Qt Creator Manual. \endif You can protect the connections between Qt Creator and a Maemo device by using either a password or an SSH key. If you use a password, you must generate it in Mad Developer and enter it in Qt Creator every time you connect to the Maemo device. If you do not have an SSH key, you can create it in Qt Creator. Encrypted keys are not supported. For more information, see \if defined(qcmanual) \l{Generating SSH Keys}. \else the Qt Creator Manual. \endif To configure connections between Qt Creator and the Maemo device: \list 1 \o To deploy applications and run them remotely on Maemo devices, specify parameters for accessing devices: \list a \o Connect your device to the development PC via a USB cable or a WLAN. For a USB connection, you are prompted to select the mode to use. Choose \gui{PC suite mode}. \note If you experience connection problems due to a USB port issue, switch to a different port or use WLAN to connect to the device. \o Select \gui Tools > \gui Options... > \gui Maemo > \gui{Maemo Device Configurations > Add}, and add a new configuration for a hardware device. \image qtcreator-screenshot-devconf.png \o In the \gui {The name to identify this configuration} field, enter a name for the connection. \o In the \gui {The system running on the device} field, select the software platform of the device. \o In the \gui {The kind of device} field, select \gui {Hardware device}. \o In the \gui {The device's host name or IP address} field, enter the IP address from the \gui usb0 or \gui wlan0 field in Mad Developer. \o Click \gui Next. \o Follow the instructions of the wizard to create the connection. \endlist \if defined(qcmanual) \o To test applications on the Maemo emulator (QEMU) separately, you must create a connection to it from the development PC. If you installed \QSDK, the connection is created automatically and you can omit this step. \list a \o In Qt Creator, select \gui {Tools > Options... > Maemo > Maemo Device Configurations > Add} to add a new configuration. \image qtcreator-maemo-emulator-connection.png \o In the \gui {The name to identify this configuration} field, enter a name for the connection. \o In the \gui {The system running on the device} field, select the software platform to emulate. \o In the \gui {The kind of device} field, select \gui {Emulator (Qemu)}. \o Click \gui Next. \o Follow the instructions of the wizard to create and test the connection. \endlist \endif \o To specify build and run settings: \list a \o Open a project for an application you want to develop for your Nokia N900. \o Click \gui Projects to open the projects mode. \o In the \gui{Build Settings} section, choose the MADDE Qt version that was registered by the installation program. \image qtcreator-screenshot-build-settings.png \o In the \gui{Run Settings} section, click \gui Add to add a new deploy configuration. The configuration is named automatically. To give it a new name, click \gui Rename. \o In the \gui {Device configuration} field, select the device connection or the Maemo emulator connection. \image qtcreator-screenshot-run-settings.png \o Click \gui {} in \gui {Remote Directory} to specify the folder where the file is installed on the device. For example, \c {/opt/usr/bin}. \endlist \endlist \if defined(qcmanual) \section2 Testing with User Data To run your application as the default user, you must first assign a password for the user account and then create the connection to the device as the user: \list 1 \o On the device, in \gui Programs, select \c {X Terminal} to open a terminal window. \o To specify the password, enter the following command: \c{/usr/lib/mad-developer/devrootsh passwd user} \o In Qt Creator, Select \gui Tools > \gui Options... > \gui Maemo > \gui{Maemo Device Configurations}. \o Specify the username \c user and the password in the device configuration. \endlist \section2 Generating SSH Keys If you do not have an SSH public and private key pair, you can generate it in Qt Creator. You can specify key length and the key algorithm, RSA or DSA. If you only use the keys to protect connections to the Maemo emulator or device, you can use the default values. \list 1 \o Select \gui {Tools > Options... > Maemo > Maemo Device Configurations > Generate SSH Key...}. \o Click \gui {Generate SSH Key}. \image qtcreator-ssh-key-configuration.png "SSH Key Configuration dialog" \o Click \gui {Save Public Key...} to select the location to save the public key. \o Click \gui {Save Private Key...} to specify the location to save the private key. \o Click \gui Close to close the dialog. \endlist \section2 Managing Device Processes You can view processes running on the Maemo device and kill them. Select \gui {Tools > Options... > Maemo > Maemo Device Configurations > Remote Processes...}. You can filter the processes by name in the \gui {List of Remote Processes} dialog. To update the process list, select \gui {Update List}. To kill a process, select it in the list, and then select \gui {Kill Selected Process}. \endif \section1 Troubleshooting The addresses used in this example might be reserved by some other application in your network. If you cannot establish a connection, try the following optional configurations: \table \header \o usb0 in Mad Developer on Device \o USB Network on Development PC \o Host Name in Qt Creator Build Settings \row \o 172.30.7.15 255.255.255.0 \o 172.30.7.14 255.255.255.0 \o 172.30.7.15 \row \o 10.133.133.15 \o 10.133.133.14 \o 10.133.133.15 \row \o 192.168.133.15 \o 192.168.133.14 \o 192.168.133.15 \note You cannot use the value localhost for connections to a device. \endtable \note VPN connections might block the device connection. */