VGA Signal in a Browser Window, Thanks to Reverse Engineering

[Ben Cox] found some interesting USB devices on eBay. The Epiphan VGA2USB LR accepts VGA video on one end and presents it as a USB webcam-like video signal on the other. Never have to haul a VGA monitor out again? Sounds good to us! The devices are old and abandoned hardware, but they do claim Linux support, so one BUY button mash later and [Ben] was waiting patiently for them in the mail.

But when they did arrive, the devices didn’t enumerate as a USB UVC video device as expected. The vendor has a custom driver, support for which ended in Linux 4.9 — meaning none of [Ben]’s machines would run it. By now [Ben] was curious about how all this worked and began digging, aiming to create a userspace driver for the device. He was successful, and with his usual detail [Ben] explains not only the process he followed to troubleshoot the problem but also how these devices (and his driver) work. Skip to the end of the project page for the summary, but the whole thing is worth a read.

The resulting driver is not optimized, but will do about 7 fps. [Ben] even rigged up a small web server inside the driver to present a simple interface for the video in a pinch. It can even record its output to a video file, which is awfully handy. The code is available on his GitHub repository, so give it a look and maybe head to eBay for a bit of bargain-hunting of your own.

from Hackaday https://ift.tt/2Qz3ObE

Comments

Crypto exchange Binance prepares to add margin trading ‘soon’

Binance, the world’s most prominent crypto exchange, says it is close to adding a much-anticipated margin trading feature to its service following weeks of speculation. The company tweeted confirmation of the upcoming feature in a screenshot which subtly teases the imminent arrival of margin trading options. Binance CEO Changpeng Zhao (pictured above) first revealed that the feature was headed to Binance during a live stream following a hack earlier this month that saw Binance lose around $40 million in Bitcoin . TechCrunch understands that margin trading has been beta tested among selected users. A Binance representative declined to comment on the specifics, but did confirm that margin trading will be available on Binance.com “soon.” Dark mode or Light mode ? #Binance pic.twitter.com/pGSb1np4yp — Binance (@binance) May 24, 2019 Margin trading, which lets traders use their balance as collateral to super-size their buying power, is seen by many as an important growth vec

World Economic Forum launches Global AI Council to address governance gaps

The World Economic Forum is creating a series of councils that create policy recommendations for use of things like AI, blockchain, and precision medicine. Read More from VentureBeat http://bit.ly/2EKBjD4

The hidden cost of food delivery

Noah Lichtenstein Contributor Share on Twitter Noah Lichtenstein is the founder and managing partner of Crossover , a diversified private technology fund backed by institutional investors, technology execs and professional athletes and entertainers. More posts by this contributor What Studying Students Teaches Us About Great Apps I’ll admit it: When it comes to food, I’m lazy. There are dozens of great dining options within a few blocks of my home, yet I still end up ordering food through delivery apps four or five times per week. With the growing coronavirus pandemic closing restaurants and consumers self-isolating, it is likely we will see a spike in food delivery much like the 20% jump China reported during the peak of its crisis. With the food delivery sector rocketing toward a projected $365 billion by the end of the decade, I’m clearly not the only one turning to delivery apps even before the pandemic hit. Thanks to technology (and VC funding) we can get a ri

All Things Tech

Search This Blog