unstable /sys interface from hmon

From: Daniel Walker
Date: Mon Jan 30 2017 - 15:43:16 EST


Cisco recently upgraded to kernel 4.4.. We have applications which use the /sys interfaces for some hmon drivers.
We found that the following patches,


Altered the interface as seen from userspace. These patches changed the paths in the following way,



My impression was that /sys was suppose to be stable, and debugfs was unstable. I'm not sure what the current guidelines are
for this, but we would request that hmon drivers maintain a stable interface from /sys. This change has cause upgrade issues
for us which we would like to avoid in the future.

A patch to add in a compatibility layer would be welcome.