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Linux Devices

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  • A Linux-friendly DAC and headphone amplifier for listening to music

    One of my favorite manufacturers of high-quality, reasonably priced, Linux-friendly audio equipment is Schiit Audio. I recently noticed they have a new gizmo at the low end of their product line, the Fulla 2, and I decided to purchase it. Basically, this is a DAC and headphone amplifier all in one unit, meaning it covers Step 2 and a part of Step 3 as I mentioned previously, and also adds some interesting additional features. I start with the DAC+headphones part. To get it going, you plug the USB cable into a laptop's USB2 or USB3 port and the other end into the Fulla 2's "USB Power and Data Input" port, set up your music player to send output to that device, plug in your headphones, and away you go.

  • Lattice iCE40 FPGA Configured by Linux Kernel

    The example uses a Raspberry Pi connected to an evaluation board. A cheap Sigrok-based logic analyzer let him troubleshoot and debug. If you think FPGA development is expensive, think again. The board used here is well under $50 and the software is free. An iCEStick is even cheaper, and would probably work here, too. You are likely to have the other bits, but even if you need to buy a Pi and the logic analyzer, the whole thing is way under $100.

  • Candy Camera App finally launched in Tizen Store

    Great news for our photography lovers as the Candy Camera app has finally hit the Tizen Store. I say finally, as this is one of the most requested camera apps for the Tizen platform. It has already been a success on Android and iOS for selfies and now JP Brothers Inc. have made it compatible with Tizen Smartphones. Candy Camera has many great features and below I will describe some highlighted features-

Video-focused hacker SBC mimics RPi 3 and Odroid-C2

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The NanoPi K2 is like an Odroid-C2 with WiFi and BT 4.0. The $40, open spec SBC offers a quad- A53, 1.5GHz Amlogic S905, 4x USB, GbE, and a 40-pin bus.

Rampant imitation is making it easier to write up these new hacker board releases. Just cut and paste an existing feature table, add and subtract a few features, and you’re done. In the case of the FriendlyElec (FriendlyARM) NanoPi K2, it’s even easier than usual. The board has the same processor, 85 x 56mm footprint, and almost an identical feature set and layout as Hardkernel’s Odroid-C2, which means it is also very similar to the Raspberry Pi 3. The NanoPi K2 and Odroid-C2 even opened with the same $40 price, although the latter now sells for $46.

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Linux Cloud Servers Explained

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Over the years, there has been a lot of mixed information as to what Linux cloud servers actually mean. This article aims to clear the air once and for all with a concise explanation while providing you with a list of Linux cloud server resources from which you can investigate for yourselves.

5 projects for Raspberry Pi at home

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The Raspberry Pi computer can be used in all kinds of settings and for a variety of purposes. It obviously has a place in education for helping students with learning programming and maker skills in the classroom and the hackspace, and it has plenty of industrial applications in the workplace and in factories. I'm going to introduce five projects you might want to build in your own home.

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Ubuntu 17.04 Zesty Zapus Released Available To Download

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I recently wrote an article talking about where the Ubuntu 17.04 is heading. Now Ubuntu 17.04 'Zesty Zapus' is released. You can download and install it to taste things newly presented. Though, there are not major changes but there are. So let's get started and see what's new in Ubuntu 17.04 'Zesty Zapus'.

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OpenShot Video Editor [Basic Openshot Video Editing Skills]

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OpenShot is a free and open source video editing application both for enthusiasts and professionals alike... uh... but don’t expect it to be better than lightworks or those adobe suit (video editing) counter-parts. Anyway, it’ll surprise you with many features and yes the integration with blender gives you the power of 3D on your hands!

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Ubuntu 17.04 Zesty Zapus Released Available To Download

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​Telegram is a messenger designed to overcome the limitations of other messengers like WhatsApp or similar ones. It is different and better than other messengers on more than one level. A few of the important features that make it stand out among other messengers are:

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Nano-iTX carrier for Jetson TX2 offers mini-PCIe add-ons

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Aetina’s Nano-ITX “ACE-N620” carrier board for Nvidia’s Linux-driven Jetson TX2 and TX1 modules offers optional mini-PCIe expansion cards from Innodisk.

Aetina’s Nano-ITX form-factor ACE-N620 carrier board offers some more development options for Nvidia’s Jetson TX2 COM, as well as its earlier, pin-compatible Jetson TX1. Already, Connect Tech has released three carrier boards for the Jetson TX2 and TX1, and Auvidea is prepping a J140 carrier for the Nvidia Tegra-based modules.

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Linux and Linux Foundation: Teleport, APIStrat, Shrinking the Linux Kernel, and SDNs

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  • New Linux SSH server shows off Golang's infrastructure power

    Gravitational, maker of a software-as-a-service support system built with Kubernetes, has released the latest open source iteration of a key part of that system.

    Teleport, an SSH server that provides support teams with a simpler way to remotely manage server clusters, is an example of Google's Go language being used to devise safer but still performant replacements for critical infrastructure.

  • APIStrat Becomes a Linux Foundation and Open API Initiative Event

    The Linux Foundation, the nonprofit advancing professional open source management for mass collaboration, today announces that the API Strategy & Practice Conference has become a Linux Foundation event and will be jointly produced with the Open API Initiative (OAI), a Linux Foundation project. Linux Foundation events are where the world’s leading technologists meet, collaborate and innovate. APIStrat 2017 will take place October 31 – November 2 in Portland, OR.

  • Shrinking the Linux Kernel and File System for IoT

    At last year’s Embedded Linux Conference Europe, Sony’s Tim Bird warned that the stalled progress in reducing Linux kernel size meant that Linux was ceding the huge market in IoT edge nodes to real-time operating systems (RTOSes). At this February’s ELC North America event, another figure who has long been at the center of the ELC scene -- Free Electron’s Michael Opdenacker -- summed up the latest kernel shrinkage schemes as well as future possibilities. Due perhaps to Tim Bird’s exhortations, ELC 2017 had several presentations on reducing footprint, including Rob Landley’s Tutorial: Building the Simplest Possible Linux System.

    Like Bird, Opdenacker bemoaned the lack of progress, but said there are plenty of ways for embedded Linux developers to reduce footprint. These range from using newer technologies such as musl, toybox, and Clang to revisiting other approaches that developers sometimes overlook.

    In his talk, Opdenacker explained that the traditional motivator for shrinking the kernel was to speed boot time or copy a Linux image from low-capacity storage. In today’s IoT world, this has been joined with meeting the requirement for very small endpoints with limited resources. These aren’t the only reasons, however. “Some want to run Linux as a bootloader so they don’t have to re-create bootloader drivers, and some want to run to the whole system in internal RAM or cache,” said Opdenacker. “A small kernel can also reduce the attack surface to improve security.”

  • SDN dilemma: Linux kernel networking vs. kernel bypass

    If we've learned anything in the technology business in the last 25 years, it would be to never underestimate the Linux kernel. Why, then, have so many networking companies been so eager to bypass the Linux kernel -- or more specifically, the Linux kernel networking stack? What could be so wrong with the networking packet arteries in the Linux kernel that motivates so many of us to bypass them?

    There are two main reasons. First, the kernel networking stack is too slow -- and the problem is only getting worse with the adoption of higher speed networking in servers and switches (10GbE, 25GbE, and 40GbE today, and rising to 50GbE and 100GbE in the near future). Second, handling networking outside the kernel allows for plugging in new technology without the need to change core Linux kernel code.

Kernel Space: Linux, Graphics

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  • Linux Kernels 4.10.10, 4.9.22 LTS and 4.4.61 LTS Arrive with Many Improvements

    Greg Kroah-Hartman announced today, April 12, 2017, the release and immediate availability of three new kernel updates, namely Linux 4.10.10, 4.9.22 LTS, and 4.4.61 LTS.

    Coming only four days after their previous maintenance updates, the Linux 4.10.10, Linux 4.9.22 LTS, and Linux 4.4.61 LTS kernels are here with a set of new improvements for users of Linux-based operating systems. Despite the short development time, it looks like Linux kernel 4.10.10 changes a total of 99 files, with 1208 insertions and 604 deletions, and Linux kernel 4.9.22 LTS changes 134 files, with 1944 insertions and 784 deletions.

  • Clear Linux Switches From ACPI CPUFreq To P-State

    ntel's Clear Linux distribution has switched from using the ACPI CPUFreq scaling driver for recent generations of Intel hardware to now using the P-State CPU frequency scaling driver.

  • Bcachefs Is Still Getting Fixed Up To Be A Next-Gen Linux File-System

    Kent Overstreet continues developing Bcachefs as what he hopes will be a next-generation Linux file-system code that's originally derived -- but now distantly removed -- from the Bcache code-base.

    Last month we reported on Bcachefs rolling out a new on-disk format with encryption and better multi-device support while Kent Overstreet has issued a new post with the latest happenings. Bcachefs was launched in 2015, for those that don't remember, with hopes of EXT4/XFS-like speed but with Btrfs/ZFS-like features.

  • Soft FP64 Patches For Intel Sandy Bridge Allow ARB_gpu_shader_fp64

    Elie Tournier, the GSoC student developer who last year worked via GSoC on "soft" FP64 double-precision support for older GPUs lacking the hardware capabilities, has posted patches wiring up his soft implementation for Intel "Gen 6" (Sandy Bridge) graphics thereby allowing ARB_gpu_shader_fp64 support.

  • Working To Improve OpenCL's Community Documentation

    The folks behind StreamComputing BV are looking to strengthen the OpenCL compute ecosystem by improving the documentation and code samples as well as better overviews for those wishing to learn this Khronos compute standard.

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More in Tux Machines

Google in Devices

  • Glow LEDs with Google Home
    For the part one, the custom commands were possible thanks to Google Actions Apis. I used API.AI for my purpose since they had good documentation. I wont go into detail explaining the form fields in, they have done a good job with documentation and explaining part, I will just share my configurations screenshot for your quick reference and understanding. In the conversations are broken into intents. I used one intent (Default Welcome Intent) and a followup intent (Default Welcome Intent – custom) for my application.
  • Google Assistant SDK preview brings voice agent to the Raspberry Pi
    Google has released a Python-based Google Assistant SDK that’s designed for prototyping voice agent technology on the Raspberry Pi 3. Google’s developer preview aims to bring Google Assistant voice agent applications to Linux developers. The Google Assistant SDK is initially designed for prototyping voice agent technology on the Raspberry Pi 3 using Python and Raspbian Linux, but it works with most Linux distributions. The SDK lets developers add voice control, natural language understanding, and Google AI services to a variety of devices.
  • Huawei, Google create a high-powered single board computer for Android
    The Raspberry Pi is very popular with DIY enthusiasts because of the seemingly endless possibilities of how you can design devices with it. Huawei and Google have created their own single board computer (SBC), but this will probably benefit Android developers more than DIY enthusiasts. The HiKey 960 is a very robust SBC aimed at creating an Android PC or a testing tool for Android apps.
  • Huawei’s $239 HiKey 960 wants to be a high-end alternative to Raspberry Pi
    12.5 million sales in five years – Linaro and Huawei have unveiled a high-end (read: expensive) rival.

Mobile, Tizen, and Android

Leftovers: OSS

  • Is The Open Source Software Movement A Technological Religion?
  • Experts weigh in on open source platforms, market
    In this Advisory Board, our experts discuss the pros and cons of open source virtualization and which platforms are giving proprietary vendors a run for their money.
  • Light a fire under Cassandra with Apache Ignite
    Apache Cassandra is a popular database for several reasons. The open source, distributed, NoSQL database has no single point of failure, so it’s well suited for high-availability applications. It supports multi-datacenter replication, allowing organizations to achieve greater resiliency by, for example, storing data across multiple Amazon Web Services availability zones. It also offers massive and linear scalability, so any number of nodes can easily be added to any Cassandra cluster in any datacenter. For these reasons, companies such as Netflix, eBay, Expedia, and several others have been using Cassandra for key parts of their businesses for many years.
  • Proprietary Election Systems: Summarily Disqualified
    Hello Open Source Software Community & U.S. Voters, I and the California Association of Voting Officials, represent a group of renowned computer scientists that have pioneered open source election systems, including, "one4all," New Hampshire’s Open Source Accessible Voting System (see attached). Today government organizations like NASA, the Department of Defense, and the U.S. Air Force rely on open source software for mission critical operations. I and CAVO believe voting and elections are indeed mission-critical to protect democracy and fulfill the promise of the United States of America as a representative republic. Since 2004, the open source community has advocated for transparent and secure—publicly owned—election systems to replace the insecure, proprietary systems most often deployed within communities. Open source options for elections systems can reduce the costs to taxpayers by as much as 50% compared to traditional proprietary options, which also eliminates vendor lock-in, or the inability of an elections office to migrate away from a solution as costs rise or quality decreases.
  • Microsoft SQL Server on Linux – YES, Linux! [Ed: Marketing and PR from IDG's "Microsoft Subnet"; This headline is a lie from Microsoft; something running on DrawBridge (proprietary Wine-like Windows layer) is not GNU/Linux]

Creative Commons News

  • Creative Commons Is Resurrecting Palmyra
    Creative Commons launched its 2017 Global Summit today with a rather moving surprise: a seven-foot-tall 3D printed replica of the Tetrapylon from Palmyra, Syria. For those who don't know the tragic situation, Palmyra is one of the most historic cities in the world — but it is being steadily destroyed by ISIS, robbing the world of countless irreplaceable artifacts and murdering those who have tried to protect them (the folks at Extra History have a pair of good summary videos discussing the history and the current situation in the city). Among ISIS's human targets was Bassel Khartabil, who launched Syria's CC community several years ago and began a project to take 3D scans of the city, which CC has been gathering and releasing under a CC0 Public Domain license. He was captured and imprisoned, and for the past five years his whereabouts and status have been unknown. As the #FreeBassel campaign continues, Creative Commons is now working to bring his invaluable scans to life in the form of 3D-printed replicas, starting with today's unveiling of the Tetrapylon — which was destroyed in January along with part of a Roman theatre after ISIS captured the city for a second time.
  • Creative Commons: 1.2 billion strong and growing
    "The state of the commons is strong." The 2016 State of the Commons report, issued by Creative Commons this morning, does not begin with those words, but it could. The report shows an increase in adoption for the suite of licenses, but that is not the whole story.