Provide some entry-level statements about what to expect from sysfs
device attribute read/store return codes, both for users and kernel
developers.
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Azael Avalos <coproscefalo@gmail.com>
Cc: H. Peter Anvin <hpa@linux.intel.com>
Cc: Frans Klaver <fransklaver@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The first paragraph of this document implies that user space developers
shouldn't use sysfs at all, but then it goes on to describe rules that
developers should follow when accessing sysfs. Not only is this somewhat
self-contradictory, it has been shown to discourage developers from using
established sysfs interfaces.
A note of caution is more appropriate than a blanket "sysfs will never
be stable" assertion.
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
