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April 22, 2013May 29, 2017 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

Booting Linux in Less Than 1 Second in AllWinner A10 Devices? Yes! You Can!

threewater, a Chinese developer, has just posted a very interesting demo on linux-sunxi mailing list showing a device based on AllWinner A10 boot linux within 0.85s, and if you add a Qt app, the total time is just about 1.2s. This appears to be a custom hardware (EM6000), but we do know it’s based on AllWinner A10, comes with 512 MB RAM, and 4GB NAND Flash. On the software side, the device runs kernel 3.4 from linux-sunxi, with a customized version of uboot, a squashfs rootfs, and a Qt 4.7.4 app showing a gauge. Both the rootfs (7MB) and the kernel (2MB) have been compressed with LZO. All that boots from NAND flash for optimal speed. The 1.2 second time includes kernel + rootfs + app time, and the total time is a bit longer, but this is still impressive. Here’s the boot log:

[1.690000 1.690000] U-Boot SPL 2013.01-05984-g2120a27-dirty (Apr 17 2013 - 14:22:02)
[0.009000 0.009000] Board: EM6000
[0.012000 0.003000] DRAM: 512MB
[1.014000 1.002000] init startup v1.1
[1.016000 0.002000] mount usr data error 2
[1.158000 0.142000] Could not read calibration: "/data/etc/pointercal"
[1.166000 0.008000] Couldnt open tslib config file: No such file or directory
[1.175000 0.009000] QWSTslibMouseHandlerPrivate: ts_config() failed with error: 'No such file or directory'
[1.187000 0.012000] Please check your tslib installation!
[1.200000 0.013000] qt show

[1.690000 1.690000] U-Boot SPL 2013.01-05984-g2120a27-dirty (Apr 17 2013 - 14:22:02)

[0.009000 0.009000] Board: EM6000

[0.012000 0.003000] DRAM: 512MB

[1.014000 1.002000] init startup v1.1

[1.016000 0.002000] mount usr data error 2

[1.158000 0.142000] Could not read calibration: "/data/etc/pointercal"

[1.166000 0.008000] Couldnt open tslib config file: No such file or directory

[1.175000 0.009000] QWSTslibMouseHandlerPrivate: ts_config() failed with error: 'No such file or directory'

[1.187000 0.012000] Please check your tslib installation!

[1.200000 0.013000] qt show

If you just boot to […]

April 21, 2013May 29, 2017 by Jean-Luc Aufranc (CNXSoft) - 18 Comments

How to Use Libhybris and Android GPU Libraries with Mer (Linux) on the Cubieboard

You may have heard about libhybris, a library that cleverly loads Android HW adaptations and convert calls from bionic to glibc. One of the greatest achievement of this library is to allow Android GPU drivers to be used with Linux, and is notably used by Canonical, although they did not write it, for Ubuntu 14.04 which will be compatible with any recent Android smartphones or tablets. One way to get started with libhybris is to port a device to Ubuntu Touch, but this may take a while. However, I’ve found a faster and easier way to play with libhybris thanks to Martin Brook (vgrade) who wrote a tutorial on how to use libhybris with Mer on the Cubieboard. Mer is an open source mobile Linux distribution powered by Qt/QML and HTML5, that’s born from the ashes of Meego, and is now used in the upcoming Sailfish OS. You’ll need to […]

March 5, 2013 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

Future Versions of Ubuntu To Feature Mir Display Server Compatible With Android Graphics Drivers

The X server is getting old, and many developers complain it’s not an optimal solution anymore due to its (over) complexity, which was why Wayland was developed. However, it turns out Ubuntu will not use Wayland, but instead their own display server called Mir which will be used in all form factors from phones to desktops. Phoronix has provided a quick summary about the key aspects of Mir: Mir is a new display server being developed at Canonical and it is not based on X.Org or Wayland. Android graphics drivers will be supported. Existing DRM/KMS/Mesa/GBM (the open-source Linux graphics drivers) will work. Canonical is pressuring the binary blob vendors to make their drivers compatible. There will be support for legacy X11 applications through an integrated root-less X.Org Server. Canonical will natively support GTK3 and Qt/QML toolkits with Mir. Mir will be used for all form factors from Ubuntu Phones to […]

February 26, 2013 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Sailfish OS SDK Alpha Release Is Now Available for Linux

Sailfish OS is a new mobile operating system based on the Qt platform that will soon end-up in mobile phone near you. Until now it was possible to build the SDK yourself, but it was pretty challenging since the documentation was lacking, as Jolla, the company behind Sailfish OS, focused on development. The good news is that you don’t need to build the SDK yourself anymore, since Jolla has just released Sailfish SDK Alpha for Linux 32-bit & 64-bit, and Windows & Mac OS versions will come later. You’ll need a computer that meet the following requirements: A host machine running a Linux operating system Oracle’s VirtualBox version 4.1.18 or higher pre-installed on the host machine. About 5GB of free disk space 4GB of RAM or more is recommended You can get started in two steps: Install the SDK – Download the 32 bit or 64 bit Linux installer. (~650 […]

January 16, 2013 by Jean-Luc Aufranc (CNXSoft) - No Comments

Qt on Embedded Systems – ELCE 2012

Lars Knoll, chief maintainer for the Qt Project, gives a presentation about Qt on embedded systems, including a demo with the Raspberry Pi at the Embedded Linux Conference Europe 2012 in Barcelona, Spain. Abstract: For well over 10 years, Qt has been used in many types of embedded devices, ranging from high-end medical systems, through mobile phones and smartphones, all the way to simple devices like coffee makers. This presentation will show some of the work that has been put in Qt throughout the years to support embedded devices, some of the challenges that the development team faced in order to bring a fully-featured desktop toolkit to resource-limited devices, along with solutions they came up with. Time permitting, the presenter will also show Qt demos running on an embedded device. This session is intended for embedded application developers looking to make use of the capabilities of recent hardware, as well […]

January 3, 2013 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

Canonical Announces Ubuntu for Phones

Canonical has just announced the Ubuntu for Phones platform that will allows users to have similar experience on desktops (Ubuntu Desktop), TVs (Ubuntu TV) and smartphones, avoiding the need to learn 2 different platform for the desktop and mobile devices. The user interface replaces the “Lock screen” with the “Welcome screen” (As shown in the middle of the picture above), which shows notifications and user data as you turn on your device. The user interface mostly eliminate buttons, and you can access features by swiping the edge of the phone. A swipe on the left edge will show the dash bar, giving access to most used apps and dash search, a swipe on the right edge will cycle through your opened apps, a swipe at the top will give access to notifications and allow changing settings right from there, and a swipe at a button will allow you to customize […]

December 20, 2012December 21, 2012 by Jean-Luc Aufranc (CNXSoft) - No Comments

Digia and the Qt Project Release Qt 5.0

The Qt Project and Digia have announced the release of Qt 5.0, which is available via Qt 5.0 page on qt-project.org, or via qt.digia.com/qt5 for commercial customers. Qt 5.0 comes as a full SDK package including Qt 5 framework, Qt Creator 2.6.1, examples and full documentation. Qt 5.0 is available in source code and binary format for Linux (64 and 32 bit), Mac OS X (10.7 and 10.8), and Windows. You can read more about the main changes and new features compared to Qt 4.8, on my previous blog post about Qt 5 Alpha. A video showcasing some of the key features of Qt 5 has been uploaded to Youtube. The video above is actually a screen capture of a Qt 5 based application using Qt Quick, OpenGL and WebKit, running in a Mac. Audio has been added with iMovie application. You can try this Qt 5 Launch Demo by yourself by […]

December 19, 2012 by Jean-Luc Aufranc (CNXSoft) - No Comments

Habey Unveils MITX-6500 mini-ITX Embedded Board Powered by Freescale i.MX53

There aren’t many mini-ITX ARM board, and the only one I can recall is Kontron KTT30/mITX based on Nvidia Tegra 3. But there’s now at least one more mini-ITX ARM board thanks to Habey MITX-6500 embedded board. This mini-ITX board feature Freescale i.MX535 or i.MX536 processors, 1GB DDR3 and a 4GB on-board SSD. Since this is mainly an industrial board, it also features 2 Ethernet NIC and a whooping 13 COM ports. The board is suitable for a range of applications such as human to machine interfaces, data acquisition, point of sale, vehicle telematics, digital signage, industrial automation, building controls and connected appliances. Contrary to many other embedded companies, Habey also sells the board available to individuals. Here are the specifications of this board: CPU – Freescale ARM Cortex A8 i.MX535 @ 1 GHz or i.MX536 @ 800 MHz System Memory – 1GB on-board DDR3 Storage – 1x SATA 3Gb/s, 1x […]