On Sun, 2 Dec 2007 19:59:45 -0800
Greg KH
On Sun, Dec 02, 2007 at 07:44:59PM -0500, Jerry Feldman wrote:
I'm updating a Linux presentation, and I'm looking for a good description of /sys. I already have a good piece on the /proc pseudo file system,, but not on /sys.
What specifically do you want to know about /sys?
It's a virtual filesystem, a portion of which exports the internal relationship between all real and virtual devices that the kernel knows about. It contains one value per file, in text for, with the exception of a very few binary files that are "pass-through" directly to to the raw hardware.
It also contains mount points for debugfs (at /sys/kernel/debug), and securityfs (/sys/kerenel/debug).
Does that help out?
If you have specific questions, feel free to ask.
I'd be interested to see what you have for /proc as well, because over time, it has been migrating to a "process things only" information. All device and other system-wide information things have been moving to /sys.
Thanks. That answers my question.
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Jerry Feldman