Sysfs - revision history

Dank at 23:30, 19 February 2021

2021-02-19T23:30:40Z

← Older revision		Revision as of 23:30, 19 February 2021
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			sysfs was introduced during the Linux 2.5 development cycle as part of a general overhaul of the device model. It provides a view into kernel <tt>kobject</tt>s (and sometimes writable controls). According to kernel documentation, "sysfs is always mounted at <tt>/sys</tt>...other mount points are a system configuration bug" (and <tt>/sys/devices</tt> is the only hierarchy userspace programs ought use). In general, a kernel ''object'' is a sysfs directory, an object ''attribute'' is a sysfs file, and a ''relationship'' between two objects is a symbolic link.

			A sysfs file cannot be larger than the page size. It is worth noting that all sysfs leaves report their size (to the <tt>stat(2)</tt> system call) to be 4,096 bytes, no matter their actual length. Their true length can be determined only by performing a <tt>read(2)</tt>.

	==See Also==		==See Also==
	* The kernel documentation's [http://www.mjmwired.net/kernel/Documentation/sysfs-rules.txt "sysfs rules"] doc		* The kernel documentation's [http://www.mjmwired.net/kernel/Documentation/sysfs-rules.txt "sysfs rules"] doc
	** Suggests one shouldn't use libsysfs!		** Suggests one shouldn't use libsysfs!
	* The [[procfs]] page		* The [[procfs]] page

Dank at 03:52, 29 December 2011

2011-12-29T03:52:45Z

← Older revision		Revision as of 03:52, 29 December 2011
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	* The kernel documentation's [http://www.mjmwired.net/kernel/Documentation/sysfs-rules.txt "sysfs rules"] doc		* The kernel documentation's [http://www.mjmwired.net/kernel/Documentation/sysfs-rules.txt "sysfs rules"] doc
	** Suggests one shouldn't use libsysfs!		** Suggests one shouldn't use libsysfs!
			* The [[procfs]] page

Dank: Created page with "==See Also== * The kernel documentation's [http://www.mjmwired.net/kernel/Documentation/sysfs-rules.txt "sysfs rules"] doc ** Suggests one shouldn't use libsysfs!"

2011-10-01T16:57:17Z

Created page with "==See Also== * The kernel documentation's [http://www.mjmwired.net/kernel/Documentation/sysfs-rules.txt "sysfs rules"] doc ** Suggests one shouldn't use libsysfs!"

New page

==See Also==
* The kernel documentation's [http://www.mjmwired.net/kernel/Documentation/sysfs-rules.txt "sysfs rules"] doc
** Suggests one shouldn't use libsysfs!