> Does changelog mean adding these details to the commit message ? > > Yes please. > will do. > > > And are these user-visable flags documented in a man page or something > > > else somewhere? If not, how does userspace know about them? > > > > > > > There are mappings of these device types value in the libc: > > "/bionic/libc/kernel/uapi/linux/if_arp.h". > > userspace can get it from here. > > Yes, they will show up in a libc definition, but where is it documented > in text form what the flag does? Judging from the changes of ARPHRD_xxx submitted before, I am sorry I could not find the corresponding doucuments to describe their respective behaviors in details. Perhaps the best way to understand their behaviors is to read the code directly. Thanks, Rocco