Frame swapping

How is frame swapping done, using the mechanisms provided
by FB (in 2.4 and 2.6)?
Can anyone point me to any good code examples in the
existing FB device drivers?

["Frame swapping" or "video page flipping" is switching
to an alternate framebuffer memory area during the
vertical blank period. This is a common technique to
achieve animation or a single clean change of picture.]

Thanks,
Clive


-------------------------------------------------------
This SF.net email is sponsored by: Splunk Inc. Do you grep through log files
for problems?  Stop!  Download the new AJAX search engine that makes
searching your log files as easy as surfing the  web.  DOWNLOAD SPLUNK!
http://ads.osdn.com/?ad_idv37&alloc_id865&op=click