On Thu, Apr 12, 2012 at 4:26 AM, Chris Wilson <chris at chris-wilson.co.uk> wrote: > On Thu, 12 Apr 2012 02:17:46 +0800, Daniel Kurtz <djkurtz at chromium.org> > wrote: >> On Wed, Apr 11, 2012 at 5:34 AM, Chris Wilson <chris at chris-wilson.co.uk> >> wrote: >> > The last major item on the wishlist is solving how to drive the SDVO i2c >> > over gmbus. I think it is just a matter of massaging in the channel >> > switch as msg[0]. >> >> I noticed that random other i2c adapter, but haven't looked at it to >> know why it is so different than the others. ?What is it? > > Every command sequence over SDVO is preceded by an instruction to the > controller as to which function to send the command to. Originally I > tried to reuse the GPIO method of simply sending that switch command > immediately followed by the real message, but I never succeeded in > setting up the SDVO devices in that manner. I suspect what is actually > required is to rebuild the message to include the preceeding bus switch. > > However, if you don't have any SDVO devices to experiment with we can > find somebody who does.
Sorry, I don't have any SDVO hardware to play with. > -Chris > > -- > Chris Wilson, Intel Open Source Technology Centre
