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Controlling a USB power supply (on/off) with Linux

... USB power management from kernels 2.6.32, which seem to settle in 2.6.38. Now you'll need to wait for the device to become idle, which is governed by the particular device driver. The driver needs to support it, otherwise the device will never reach this state. Unluckily, now the user has no chance...
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Run an untrusted C program in a sandbox in Linux that prevents it from opening files, forking, etc.?

...t.c root/assignment.c Exit the VM's root FS: cd .. sudo umount mountpoint Now the image is ready, we just need to run it. It will compile and run the submission after booting. mkfifo /tmp/guest_output Open a seperate terminal and start listening for guest output: dd if=/tmp/guest_output bs=1 In an...
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Netty vs Apache MINA

... Update: Just use Netty. It is now a mature project with all the bells and whistles required for building protocol clients and servers. It has strong community with several active contributors backed by enterprises. It also has a book, 'Netty in Action'. I...
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How do CDI and EJB compare? interact?

... It is currently indeed a bit confusing as there are now multiple component models in Java EE. They are CDI, EJB3 and JSF Managed Beans. CDI is the new kid on the block. CDI beans feature dependency injection, scoping and an event bus. CDI beans are the most flexible with resp...
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How do I get the resource id of an image if I know its name?

How do I get the resource id of an image if I know its name (in Android)? 5 Answers 5 ...
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Is key-value observation (KVO) available in Swift?

...osure, then `[weak self]` is not needed print("bar property is now \(object.bar)") } } } Note, in Swift 4, we now have strong typing of keypaths using the backslash character (the \.bar is the keypath for the bar property of the object being observed). Also, because it's us...
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HTML 5: Is it , , or ?

... @Marco: Huh, I didn't know document.write doesn't work in xhtml -- thanks for sharing. I agree that it'd be silly for webapps to try and do anything without Javascript, but I was trying to say that websites that rely almost 100% percent on Javascr...
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Tuples( or arrays ) as Dictionary keys in C#

...string. I tried using arrays as keys, but that did not work, and I don't know what else to do. At this point I am considering making a Dictionary of Dictionaries of Dictionaries, but that would probably not be very pretty to look at, though it is how I would do it in javascript. ...
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Is \d not supported by grep's basic expressions?

...'s -E mode does not. That's so glaring I'm shocked I'm just discovering it now. – Keith Tyler Jun 23 '16 at 0:20 1 ...
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What's the difference between tag and release?

...email to support@github.com or this contact form. Update: The GitHub API now allows to manipulate Releases. See the announcement. share | improve this answer | follow ...