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Controlling a USB power supply (on/off) with Linux
...e. The information in this answer is relevant for the older kernels (up to 2.6.32). See tlwhitec's answer for the information on the newer kernels.
# disable external wake-up; do this only once
echo disabled > /sys/bus/usb/devices/usb1/power/wakeup
echo on > /sys/bus/usb/devices/usb1/power/...
Pick a random element from an array
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326
Swift 4.2 and above
The new recommended approach is a built-in method on the Collection protoc...
gem install: Failed to build gem native extension (can't find header files)
I am using Fedora 14 and I have MySQL and MySQL server 5.1.42 installed and running.
Now I tried to do this as root user:
1...
How to maintain aspect ratio using HTML IMG tag
...eight and width attribute to 64. I need to show any image resolution (e.g. 256x256, 1024x768, 500x400, 205x246, etc.) as 64x64. But by setting the height and width attributes of an img tag to 64, it's not maintaining the aspect ratio, so the image looks distorted.
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C# Xml中SelectSingleNode方法中的xpath用法（Xml节点操作最佳方式） - 更...
...ent --> 的节点。
Text，指在<Name>Tom<Name>的粗体部分。
2、在XML中，可以用XmlNode对象来参照各种XML数据类型。
2.1 查询已知绝对路径的节点（集）
objNodeList = objDoc.SelectNodes("Company/Department/Employees/Employee")
或者
objNodeList...
GSON - Date format
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312
It seems that you need to define formats for both date and time part or use String-based formatt...
Predicate in Java
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203
I'm assuming you're talking about com.google.common.base.Predicate<T> from Guava.
From ...
How can I eliminate slow resolving/loading of localhost/virtualhost (a 2-3 second lag) on Mac OS X L
... environments on Mac OS X Lion (brand new macbook air purchased in January 2012), I have noticed that resolving to a virtual host is very slow (around 3 seconds) the first time but after that is fast as long as I continue loading it regularly.
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What is a Manifest in Scala and when do you need it?
Since Scala 2.7.2 there is something called Manifest which is a workaround for Java's type erasure. But how does Manifest work exactly and why / when do you need to use it?
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