December 2011
Intermediate to advanced
485 pages
15h 47m
English
Content preview from OS X and iOS Kernel ProgrammingBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Observing Device Removal
As well as watching for the arrival of devices, an application may wish to watch for a device being removed from the system, such as a USB device being unplugged. Unlike device arrival messages, which are delivered for any device that meets the criteria described by a matching dictionary, a device removal message is delivered only for a particular device that the application has registered an interest in. An application will typically register an interest in all devices that it has opened, since the application will want to respond to the removal of a device that it is accessing.
In our previous code examples, such as Listing 5-3, we obtained a reference to a driver object, read properties from the driver, and then released ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.