From: Nathan Lynch 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 Cc: Greg KH Cc: Stephen Rothwell Signed-off-by: Andrew Morton --- Documentation/sysfs-rules.txt | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff -puN Documentation/sysfs-rules.txt~sysfs-rulestxt-reword-api-stability-statement Documentation/sysfs-rules.txt --- a/Documentation/sysfs-rules.txt~sysfs-rulestxt-reword-api-stability-statement +++ a/Documentation/sysfs-rules.txt @@ -3,9 +3,8 @@ Rules on how to access information in th The kernel-exported sysfs exports internal kernel implementation details and depends on internal kernel structures and layout. It is agreed upon by the kernel developers that the Linux kernel does not provide a stable -internal API. As sysfs is a direct export of kernel internal -structures, the sysfs interface cannot provide a stable interface either; -it may always change along with internal kernel changes. +internal API. Therefore, there are aspects of the sysfs interface that +may not be stable across kernel releases. To minimize the risk of breaking users of sysfs, which are in most cases low-level userspace applications, with a new kernel release, the users _