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IOCTL Linux device driver [closed]

...l, which means "input-output control" is a kind of device-specific system call. There are only a few system calls in Linux (300-400), which are not enough to express all the unique functions devices may have. So a driver can define an ioctl which allows a userspace application to send it orders. How...
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How can I dynamically create derived classes from a base class

... This bit of code allows you to create new classes with dynamic names and parameter names. The parameter verification in __init__ just does not allow unknown parameters, if you need other verifications, like type, or that they are mandatory...
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Vim: insert the same characters across multiple lines

...e the screen in the first line - until Esc is pressed (6.), at which point all lines will be updated. Press Esc. An uppercase I must be used rather than a lowercase i, because the lowercase i is interpreted as the start of a text object, which is rather useful on its own, e.g. for selecting insi...
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set the width of select2 input (through Angular-ui directive)

... add method container css in your script like this : $("#your_select_id").select2({ containerCss : {"display":"block"} }); it will set your select's width same as width your div. ...
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How to turn on/off ReactJS 'development mode'?

...me helpers off during production. Just using the minified react will leave all those potential optimizations on the table as well. Ultimately the magic comes down to React embedding references to process.env.NODE_ENV throughout the codebase; these act like a feature toggle. if (process.env.NODE_ENV ...
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In MySQL, can I copy one row to insert into the same table?

...an existing row in the table) but I want to do this without having to list all the columns after the "select", because this table has too many columns. ...
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What is the best way to stop people hacking the PHP-based highscore table of a Flash game

...e key encryptions and high score postings throughout the binary. This is all mostly a waste of time. It goes without saying, SSL isn't going to help you either; SSL can't protect you when one of the two SSL endpoints is evil. Here are some things that can actually reduce high score fraud: Requi...
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Pandas - How to flatten a hierarchical index in columns

..., but leaves behind column names which are difficult to access programmatically and are not queriable – dmeu Jun 29 '17 at 8:53 1 ...
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Adding custom radio buttons in android

... option ..... how to remove that ... keeping the functionality intact .... All i am trying to achieve as i showed in my question ... Any further directions ! [Note:: please look at the updated question] – Devrath Oct 3 '13 at 16:41 ...
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How to track down a “double free or corruption” error

... If you're using glibc, you can set the MALLOC_CHECK_ environment variable to 2, this will cause glibc to use an error tolerant version of malloc, which will cause your program to abort at the point where the double free is done. You can set this from gdb by using ...