In message <1112666306.362588.666.nullmailer@yamt.dyndns.org>,
YAMAMOTO Takashi writes:

>> I just want to maintain the shorthand for the common usage of "enable  
>> it in both directions".
>
>you want to save a several letters when writing a driver?

Surely the shorthand meant is for typing "ifconfig" options?  

OTOH, me, I'm agnostic as to how ifconfig and the kernel conspire to
achieve that: whatever makes most sense.