December 2011
Intermediate to advanced
485 pages
15h 47m
English
Content preview from OS X and iOS Kernel Programming
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C H A P T E R 5
Interacting with Drivers from Applications
In the previous chapter, we learnt about I/O Kit drivers, which live in the kernel. On the other hand, the applications that users interact with live in user space. So, if the user is going to use the services provided by your driver, the kernel/user space boundary needs to be crossed.
Mac OS X provides several different mechanisms through which a driver can provide its services to user space applications. The method that a developer chooses to allow a particular driver to provide its services to user space applications is dependent on the type of functionality that the driver implements. For example, all serial ports, audio drivers, and storage devices have their own interface that ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.