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October 26, 2011October 26, 2011 by Jean-Luc Aufranc (CNXSoft) - No Comments

Yocto Project Release 1.1 Announced

The Linux foundation announced Yocto Project Release 1.1 today. This release codenamed “Edison” and based on Poky 6.0 is the the second release of the project, one year after it was announced in October 2010 to provide developers with greater consistency in the software and tools they’re using across multiple architectures for embedded Linux development. The Yocto Project reached the following milestones during the last year: Alignment of OpenEmbedded technology and the inclusion of OpenEmbedded representation in the Yocto Project governance structure. The projects share a common core that consists of software build recipes and core Linux components that prevent fragmentation and reinforce the OpenEmbedded methodology as an open standard for embedded Linux build systems. Contribution of tools and technologies such as Cross-prelink, EGLIBC, Pseudo, Shoeleather Lab (for automated testing) and Swabber have been contributed from Intel, Mentor Graphics, MontaVista Software and Wind River. Commercial adoption with examples such as […]

October 25, 2011October 25, 2011 by Jean-Luc Aufranc (CNXSoft) - No Comments

Linux 3.1 Release

Linux Torvalds announced the release of Linux Kernel 3.1 yesterday: As promised, the kernel summit has started, and Linux-3.1 is out. The (small) shortlog of changes since -rc10 are appended, we have mostly some sparc and networking changes, along with some radeon and intel iommu fixes (mostly for largepages and integrated graphics issues). Most people probably will not notice the changes. One big change from -rc10 is that there are tar-balls and patches, so if you aren’t a git user (why?) you can download it now in a traditional format. On of the things to note is that the files are now signed by my gpg key, and it’s the *uncompressed* version that the signature is for. And of course, this means that the merge window for 3.2 is open. I’ll do some merging during the KS, but probably most when I get back home – but you can still […]

October 21, 2011October 21, 2011 by Jean-Luc Aufranc (CNXSoft) - No Comments

Renesas R-Car H1 Automotive SoC

Renesas announced the R-Car H1, their new automotice SoC with 4 Cortex-A9 cores clocked at 1GHz and Imagination Technologies’ SGX-543-MP2 graphics processing unit (GPU) aimed at high-end navigation systems. It also features a Renesas SH-4A high-reliability real-time processing CPU core acting as a multimedia engine (MME) . The R-Car H1 SoC can also powered with Renesas’ IMP-X3 core (optional), a real-time image processing unit that enables developers to implement augmented reality application such as 360-degree camera views (Thanks to up to four independent input camera channels) and sign recognition. Here’s an excerpt of the press release: Renesas Electronics Corporation (TSE: 6723) and its subsidiary, Renesas Mobile Corporation, today announced a new member of the R-Car series of automotive systems-on-chip (SoCs), the R-Car H1, capable of delivering up to 11,650 Dhrystone MIPS (DMIPS), and ideal for the high-end car navigation market. The R-Car H1 SoC offers an innovative architecture where the application […]

October 20, 2011October 20, 2011 by Jean-Luc Aufranc (CNXSoft) - No Comments

Leveraging Android’s Linux Heritage at Android Open 2011

The first Android Open Conference took place about 10 days ago. Karim Yaghmour of OperSys published the presentation slides he used during his Android presentations. See Leveraging Android’s Linux Heritage presentation slides below which explain how to use existing Linux application in Android. Those 15 slides cover the following: Goal Rationale Stack Comparison Roadblocks Where do I start? Coexistence Approaches Unresolved / Uncharted Demo You can also check out the Embedded Android Workshop presentation. Jean-Luc Aufranc (CNXSoft)Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011. www.cnx-software.com

October 20, 2011October 20, 2011 by Jean-Luc Aufranc (CNXSoft) - No Comments

Embedded Android Workshop at Android Open 2011

The first Android Open Conference took place about 10 days ago. Karim Yaghmour of OperSys published the presentation slides he used during his Android presentations. See Embedded Android Workshop presentation slides below. Those 159 slides cover the following: Android Basics Android History Android Ecosystem Legal Framework for Android Platform and Hardware requirements Development Tools Concepts and Internals: Android Concepts Framework Intro Native Development Overall Architecture System startup Linux Kernel Hardware Support Native User-Space Dalvik JNI System Server Calling on Services Activity Manager Binder Stock AOSP Apps Android Open Source Projects Tools and location Content Building Build system Adding new applications Images Using adb System Server Services run by System Server Observing the System Server Calling on system services Inside a few system services Creating your own system service Hardware Abstraction Layer Android Framework Location and components Android Customization Custom Toolchains and Dev Kits Rationale SDK generation NDK generation Creating a […]

October 19, 2011October 19, 2011 by Jean-Luc Aufranc (CNXSoft) - No Comments

Online Petition Requesting to Allow Linux Installation on Windows 8 Devices

Back in September, some concerns emerged about UEFI secure boot requirement for Windows 8 and its possible consequences on Linux and other open source operating systems: it may be impossible to install such systems on computers or devices shipped with Windows 8, either by replacing Windows 8 or in a dual boot installation as the bootloader (UEFI) would prevent such installation for security reasons. Microsoft has already replied to those concerns and stated that: At the end of the day, the customer is in control of their PC. … We work with our OEM ecosystem to provide customers with this flexibility. The security that UEFI has to offer with secure boot means that most customers will have their systems protected against boot loader attacks. For the enthusiast who wants to run older operating systems, the option is there to allow you to make that decision. So there should be an […]

October 18, 2011April 9, 2018 by Jean-Luc Aufranc (CNXSoft) - 52 Comments

Raspberry Pi Emulator in Ubuntu with Qemu

The Raspberry Pi board is a low cost board based on Broadcom BCM2835 media processor SoC with an ARM1176JZF-S core clocked at 700MHz. This board is currently under development and should be ready by end of November, beginning of December and will be sold for 25 USD (128MB RAM – no Ethernet) and 35 USD (256MB RAM – Ethernet). While we are waiting for the board, we can still test software using qemu to emulate a board based on an ARM1176 core with 128MB or 256 MB memory. I’ve tried to create a rootfs based on Ubuntu with rootstock but this only support processors with ARM cortex A8 and greater, so it would not work with ARM11. I’ll be using Debian Squeeze instead. Prerequisites My host computer is running Ubuntu 10.04.3 LTS, but any recent Ubuntu or Debian installation should work with these instructions. [Update: You won’t be able to […]

October 13, 2011October 13, 2011 by Jean-Luc Aufranc (CNXSoft) - No Comments

Finding the package that contains a particular file in Ubuntu

It often happens that a file is missing during compilation and you get this kind of error: In file included from media/audio/linux/audio_manager_linux.cc:15:0: ./media/audio/linux/alsa_input.h:8:28: fatal error: alsa/asoundlib.h: No such file or directory compilation terminated. In file included from media/audio/linux/alsa_input.cc:5:0: ./media/audio/linux/alsa_input.h:8:28: fatal error: alsa/asoundlib.h: No such file or directory compilation terminated. That usually means a development package is missing. Sometime you can just guess the name of the package or you can use aptitude to find the file. There is also another (better) method in Ubuntu: apt-file utility allows you to find the package corresponding to a particular file. First install apt-file sudo apt-get install apt-file Them the first time, you need to download the files with the data for your system apt-file update Finally, you can use apt-file to find the package. For example with alsa/asoundlib.h apt-file search alsa/asoundlib.h libasound2-dev: /usr/include/alsa/asoundlib.h Jean-Luc Aufranc (CNXSoft)Jean-Luc started CNX Software in 2010 as […]