Buckler question

[FalcWP]

According to the PHB, using an off-hand weapon while wearing a buckler means you take a -1 penalty on attack rolls. Does this penalty apply only to your off-hand attack(s)? Or does it apply to all attacks, primary and off-hand alike?

 

[Patryn of Elvenshae]

Just your off-hand.

 

[Darklone]

All attacks.
SRD:
Buckler: This small metal shield is worn strapped to your forearm. You can use a bow or crossbow without penalty while carrying it. You can also use your shield arm to wield a weapon (whether you are using an off-hand weapon or using your off hand to help wield a two-handed weapon), but you take a –1 penalty on attack rolls while doing so. This penalty stacks with those that may apply for fighting with your off hand and for fighting with two weapons. In any case, if you use a weapon in your off hand, you don’t get the buckler’s AC bonus for the rest of the round.
You can’t bash someone with a buckler.