By Karim Yaghmour
Karim Yaghmour, Jon Masters, "Building Embedded Linux platforms, 2d Edition"
2008 | ISBN: 0596529686 | writer: OReilly Media | MOBI | 462 pages | five + four MB
There's loads of pleasure surrounding using Linux in embedded platforms -- for every thing from cellphones to vehicle ABS structures and water-filtration crops -- yet no longer loads of functional info. construction Embedded Linux structures bargains an in-depth, hard-core advisor to assembling embedded structures in response to Linux.
Updated for the most recent model of the Linux kernel, this new version provides the fundamentals of establishing embedded Linux structures, in addition to the configuration, setup, and use of greater than forty assorted open resource and unfastened software program applications in universal use. The booklet additionally seems to be on the strengths and weaknesses of utilizing Linux in an embedded process, plus a dialogue of licensing matters, and an advent to real-time, with a dialogue of real-time ideas for Linux.
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Additional resources for Building Embedded Linux Systems (2nd Edition)
The directory entry contains the file name and inode number for each file in the directory. The inode number has an associated entry in an inode table, which contains information on the characteristics of a file, such as the owner, the type of file access permissions, the date last modified, and the locations it occupies on disk. 3 H i d d e n Files A subclass of the ordinary file is the hidden file. The names of hidden files always begin with a period, and each file has a special function. We will encounter a number of these files in chapters to come.
3 summarizes commonly used U N I X file extensions. y yacc p r o g r a m a. 3 CommandStructure and File Naming UNIX File Extensions (continued) OpenVMS UNIX . EDT Documentation . 6 . M A R VAX macro source code . T J L ournal file created by the TPU and ACL editors . 2 Command Structure and File Naming 31 In UNIX, command names may not be abbreviated. In OpenVMS, the portion of the command name that renders it unique is sufficient. UNIX, on the other hand, requires a full specification of the command name because the command is usually a filename.
Each device on the system has a special file associated with it. These special files reside in the directory/dev. 4, UNIX treats disks, tape drives, printers, terminals, and pseudoterminals (used for network connections) as files. Writing to a special file is a matter of course for programs when executing a command; it can also be done explicitly by the user, as later chapters will demonstrate. Ordinary files contain ASCII characters or binary data. Copying an ordinary file to a special file will output the contents of the ordinary file on the physical device pointed to by the special file.
Building Embedded Linux Systems (2nd Edition) by Karim Yaghmour