Different Initial interface orientation iPhone and iPad universal application

Question

What I want is Portrait orientation for iPhone and Landscape orientation for iPad app. My app is targeted for > ios5
I searched on web about this but got different answers but not the exact one.

Answer 1

So here is what I did

For iPhone

and for iPad

And for iPad controllers I added below code, this is not necessary for ios6 applications

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return (interfaceOrientation == UIInterfaceOrientationLandscapeRight ||
            interfaceOrientation == UIInterfaceOrientationLandscapeLeft);
}