Re: [Linux-fbdev-devel] rotation.

However, as Geert mentioned, if you want to support rotation
generically, then you have to do it in the fbcon level.  The driver need
not know if the display is rotated or not.  All it needs to do is fill a
region with color, color expand a bitmap and move blocks of data, and
optionally 'pan' the window.  Fbcon will pass the correct (ie, oriented)
information for the driver.

Yes. Hardware rotation shouldn't also not effect the way accel 
operatations are done. 

This will not be too processor intensive as long as some data is
prepared beforehand, like a rotated fontdata.

Yeap!! The only thing is we could end up with 4 times the amount of data.
 

The main difficulty with this approach is how do you tell the console to
rotate the display?  We cannot use fbset because the changes will not be
visible to fbcon. 

I think it should video fbcon=rotate:90 command line for example.

I submitted a patch before (see fbdev archives for "Console Rotation"
thread) that rotates the console this way.  I had vga16fb, vesafb, and

I seen it and even have it still.