How to Transfer files between Host and Qemu

I previously posted instructions to install and run nano and ARM Linux Internet Platform (ALIP) distribution images for Overo and Beagleboard on QEMU, If the image support networking, you could use ssh (install dropbear server in qemu) or nfs to transfer files between the host computer and qemu, or even run your program from the NFS share. This should be possible to do that on the Overo emulator since it support Ethernet. However, although I can access Internet, I cannot access the host via ssh as the host is in a private subnetwork (192.168.0.0) and qemu in another (10.0.2.0). We would probably have to enable bridge networking for that but the tun driver is apparently not compiled in ALIP kernel. I’ll look into that later on. [Update: Finally, we don’t need tun/tap to make this work, please read http://www.cnx-software.com/2011/10/02/how-to-transfer-files-between-host-and-qemu-via-ssh-and-nfs/ for details.] Today, I’ll just show how to mount a Qemu […]

Amazon Kindle Fire Tablet Powered by TI OMAP4 Processor

Amazon unveiled its first Android tablet yesterday called the Kindle Fire. The Kindle Fire seems to have similar hardware specifications as the RIM PlayBook. The Amazon tablet is powered by a Texas Instruments OMAP 4 dual core processor, features a 7″ capacitive touchscreen, using IPS (in-plane switching display) technology with 1024×600 resolution,  8GB of flash storage, WiFi support, a Micro-USB port, top-mounted stereo speakers and a stereo headphone jack. The Kindle Fire apparently lacks a microSD or SD slot, does not support 3G and does not have camera. It measures 191 x 119 x 11 millimeters and weighs 413.9 grams. When Wi-Fi is disabled, the battery will last for up to eight hours of continuous reading or 7.5 hours of video playback. The good news is that it will be sold for 199 USD.  It’s 100 USD cheaper than the (already cheap) Archos 80 G9 with a similar hardware, although […]

Khadas Edge2 Arm mini PC

Android 2.3 Coming to Sony Ericsson Xperia Devices

CyanogenMod has announced that they would work with FreeXperia and support the following devices in the next release of CyanogenMod: Xperia Arc Xperia Neo Xperia Mini Xperia Mini Pro Xperia Play Xperia Ray Xperia X10 Xperia X8 Xperia X10 Mini Xperia X10 Mini Pro Cyanogen (Steve Kondik) also mentionned that FreeXperia is now part of CyanogenMod development team. Back in January, I’d already posted that it was possible to install a hacked version of Android 2.2 on Xperia X10. You can follow Xperia X10 Development on CM7.1 on XDA form and obtain the source code on github. ROMs based on CyanogenMod 7 for Xperia X8 and Xperia X10 Mini are available at http://code.google.com/p/minicm/

Qualcomm APQ8060 Android Development Board BSQUARE DragonBoard

BSQUARE announced the DragonBoard a development board built around Qualcomm APQ8060 mainly targeted at Android 2.3 development. Here’s an excerpt of the press release: BSQUARE Corporation, a leading enabler of smart, connected devices, today announced general availability of DragonBoard™, an Android™ development platform based on Qualcomm Incorporated’s Snapdragon™ APQ8060 processor. DragonBoard provides device makers, application developers and other hardware and software ecosystem suppliers with early access to the APQ8060 processor in a flexible development environment. DragonBoard is a powerful, feature-rich development board that offers exposed connectors, adapters and expansion headers including JTAG, Ethernet and mini USB. These features provide deep levels of development, testing and expansion that allow OEMs to do early prototyping of APQ8060 based systems, component suppliers to integrate devices with the APQ8060 processor and Android application developers to create innovative applications for the growing open source development community. When combined with BSQUARE products and services, DragonBoard enables […]

Redirect all output to a log file

When you build a program or execute a shell command, the messages are often outputted to both standard output and standard error. If you want to send all ‘printf’ to a log file, use the following command: make > make.log 2>&1 “2>&1”  is the part that redirects standard error to standard out, allowing you to capture all messages.

New Remote Technologies to Control Smart TVs

With Internet-connected flat TVs and set-top boxes, we can now use browse the web and play games. But the traditional remote is not up to the task and new solutions are needed to interact with smart TVs and internet STB such as gesture recognition,  wii-like remotes and tablet/smartphone control. A few companies showcased their solutions at IBC (International Broadcasting Convention) 2011, which took place between the 9th and 13th of September 2011 in Amsterdam: PrimeSense Gesture Recognition PrimeSense, an Israel-based company known for its range image sensor embedded in the “Kinect” motion-based controller for Xbox, began to promote the sales of its range image sensors to TV and STB makers.  PrimeSense ran a prototyped UI software on a notebook PC and controlled the UI by using a gesture recognition device connected to a PC. The UI can be operated by moving a hand. You can then control TV screen like […]

Rockchip RK3568/RK3588 and Intel x86 SBCs

Summary of Google Devfest 2011 Chiang Mai, Thailand

I attended Google Devfest 2011 in Chiang Mai, Thailand last Saturday (24 September 2011) . This was really interesting and enlightening. So if are a developer, I really recommend to register to a Devfest if Google comes to your city. I was relatively surprised by the number of attendees which I estimate between 150 to 200. This Devfest focused on three main subjects: Android HTML5 (and Chrome) Google Analytics Please find the complete schedule below: Track 1 Track 2 09:00 – 09:30 Keynote 09:30 – 10:30 Android Market for Developers (Ankur Kotwal) 10:30 – 11:00 AM Break 11:00 – 12:00 Bleeding Edge HTML5 (Eric Bidelman) 12:00 – 13:00 Implementing Google Analytics (Vinoaj Vijeyakumaar) 13:00 – 14:00 Lunch 14:00 – 15:00 What’s New and Important in Android (Ankur Kotwal) Displaying Large Geographic Datasets: Google Fusion Tables (Luke Mahe) 15:00 – 16:00 These Aren’t the Site You’re Looking For: Modern HTML5 Web Apps (Eric Bidelman) Working Off the Grid: HTML5 Offline (Ernest Delgado) 16:00 – 16:30 PM Break 16:30 – 17:30 Insights […]

How to Develop and Port Android to a New Hardware Platform with Linaro

Zach Pfeffer, Linaro Android Working Group tech lead, gives an introduction to making Android work on a new hardware platform at Linaro Connect Q3.11 in Cambridge, August 2011. He starts by giving details about Android, its implementation, and how source code is managed. He then gives details about how to add support for a new board, taking advantage of Linaro scripts and infrastructure, already supporting community boards from several ARM SoC vendors. Here are the main topics covered during this 48 minutes presentation: General Android Overview (at 5:00 in the video) and different Android “components”: The Linux kernel Non-upstreamed kernel extensions A set of shared and static libraries A set of Hardware Abstraction Layers (HALs) A JIT capable VM Android activity framework Android applications Repo, Gerrit and Git (25:50) Porting to a new Platform (35:07) HALs and Hardware Acceleration (39:00) Continuous Integration (41:02) Linaro Evaluation Build (LEB) Integration (45:06) Slides […]

Khadas VIM4 SBC