Harald Welte

Apple not providing LGPL webkit source code for latest iOS 4.3.x

Using USB-VGA dongles as SDR transmitter

Yesterday, during OsmoDevCon 2018, Steve Markgraf released osmo-fl2k, a new Osmocom member project which enables the use of FL2000 USB-VGA adapters as ultra-low-cost SDR transmitters. How does it wor

VMware joins Linux Foundation: what about the GPL?

As we can read in recent news, VMware has become a gold member of the Linux foundation. That causes - to say the least - very mixed feelings to me. One thing to keep in mind: The Linux Foundation is

Why do self-respecting hackers use Gmail & Co?

You can now install a GSM network using apt-get

This is great news: You can now install a GSM network using apt-get! Thanks to the efforts of Debian developer Ruben Undheim, there's now an OpenBSC (with all its flavors like OsmoBSC, OsmoNITB, OsmoS

Report from the VMware GPL court hearing

Today, I took some time off to attend the court hearing in the GPL violation/infringement case that Christoph Hellwig has brought against VMware. I am not in any way legally involved in the lawsuit.

HTC's delays in releasing Linux source code are unacceptable

Ten years after first shipping Openmoko Neo1973

Exactly 10 years ago, on July 9th, 2007 we started to sell+ship the first Openmoko Neo1973. To be more precise, the webshop actually opened a few hours early, depending on your time zone. Sean announ

33C3 talk on dissecting cellular modems

Yesterday, together with Holger 'zecke' Freyther, I co-presented at 33C3 about Dissectiong modern (3G/4G) cellular modems. This presentation covers some of our recent explorations into a specific type

Worlds first 20 minute voice call from a Free Software GSM stack on a phone