By Joseph Kong

Device drivers guarantee that your software program to speak along with your undefined, and since each working process has particular requisites, driving force writing is nontrivial. while constructing for FreeBSD, you've most likely needed to scour the net and dig throughout the kernel resources to determine find out how to write the drivers you wish. fortunately, that prevents now. In FreeBSD machine Drivers, Joseph Kong will train you ways to grasp every little thing from the fundamentals of establishing and operating loadable kernel modules to extra complex themes like thread synchronization. After a crash direction within the diverse FreeBSD driving force frameworks, wide instructional sections dissect real-world drivers just like the parallel port printer driver.

You'll learn:
* All approximately Newbus, the infrastructure utilized by FreeBSD to regulate the units in your system
* the right way to paintings with ISA, PCI, USB, and different buses
* the simplest how you can keep watch over and converse with the units from consumer space
* the best way to use Direct reminiscence entry (DMA) for optimum approach performance
* the interior workings of the digital null modem terminal driving force, the USB printer motive force, the Intel PCI Gigabit Ethernet adapter motive force, and different very important drivers
* the best way to use universal entry procedure (CAM) to control host bus adapters (HBAs)

Concise descriptions and wide annotations stroll you thru the various code examples. Don't waste time looking out guy pages or digging throughout the kernel resources to determine the right way to make that arcane little bit of paintings along with your procedure. FreeBSD machine Drivers grants the framework you want to write any motive force you will want, now.

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