Summary | HP-UX 11i Internals

In this chapter, we looked at the I/O subsystem from a variety of levels. We covered some of the physical and architectural aspects of the I/O system, looking at how modules are accessed, addressed, and claimed by drivers.

We looked at how the I/O portion of the kernel is made up of a complex framework consisting of the GIO, which acts as interface and overseer; a variety of CDIOs, which encapsulate the drivers; and the CB CDIO, which manages the platform-specific parts of the I/O system.

Finally, we looked at how I/O requests work their way through the system from a user request to a device special file to the device switch tables and into the correct driver.

All this gives us a more detailed look at some of the I/O interfaces we touched on in earlier chapters. Chapter 15, "System Initialization," looks at how this fits in with the other things that happen at boot time.

Table of content

HP-UX 11i Internals

ISBN: 0130328618
EAN: 2147483647

Year: 2006
Pages: 167

Authors: Chris Cooper, Chris Moore

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