Frame Buffer and Y Cb Cr

Wolfgang Denk wd at
Sat Jan 8 09:30:07 EST 2005

In message <41DEFB89.5060404 at> you wrote:
>     My trouble is: Linux sends me R G B and the hardware expects Y Cb 
> Cr. As things work through a memory-mapped file, I am at a loss for an 
> "intelligent" way to intercept and convert these values.

Have a look at the arch/ppc/8xx_io/viedo* files in our old  linux-2.4
tree  on the CVS server - this driver is for the video contoller on a
MPC823 wich needs YCbCr.

Best regards,

Wolfgang Denk

Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at
Sometimes a feeling is all we humans have to go on.
	-- Kirk, "A Taste of Armageddon", stardate 3193.9

More information about the Linuxppc-embedded mailing list