On Mon, May 26, 2008 at 12:15:13PM -0300, Mauro Carvalho Chehab wrote: > > > I have also some thoughts for bttv-risc.c. What is it? It is used > > to generate any RISC op-codes to be downloaded on the board? It seem > > responsible for DMA operations. > > Yes, that's the idea. Those chips have a set of risc instructions that needed > to be loaded. Those risc code will command data send, via DMA, to the > motherboard. It looks that also TW6800 has this machinery with similar instructions. I could start an all-private risc file and let see what happens as time flows. > bttv, cx88 and cx23885 drivers share the same risc code, > provided by btcx-risc.c. bttv-risc.c has some code that is specific for bttv. btcx-risc.c is not modified bby the upstream patch. > If you are willing to write a new driver, I suggest you to use a more modern > driver as a model. I would suggest you to take cx88 as a model. great ;) ciao, Domenico -----[ Domenico Andreoli, aka cavok --[ http://www.dandreoli.com/gpgkey.asc ---[ 3A0F 2F80 F79C 678A 8936 4FEE 0677 9033 A20E BC50
