We have a project that needs NTSC video input added to a X window system using Asiliant 69000s video chips. It's a custom board for an embedded app. Its a pretty cool little SBC with 2 69000's driveing 2 independent displays via Multi-head. I've used the saa7146 and v4l2 to do video in a window but that runs the video across the PCI bus. They way we would like to do it is via the multimedia engine overlay ability of the 69000 and one of the phillips saa type chips so we can keep the video off the bus. We have an existing product that does this with DOS and it works well. Our DOS product has the saa attached to the 69000 via the I2C bus. I've been doing some research and it looks like most of the pieces to duplicate this under X exist but I haven't really found any reference on how to put them all together. Or even if they will all work together. Theres the I2C in the kernel and I also see an I2C module for X but it's not totally clear to me what I2C bridge(s) each of these are capable of using. The readme for 69000 options in X shows an overlay support option but it claims that XVideo uses the same features and enableing it will disable XVideo. It dosen't really say anything about controling an I2C device attached to it. I was hoping somebody on this list could point me to some docs on making this all work or at least let me know if I'm in for a whole lotta driver work. I gotta try to put together an estimate of the manpower needed. -- Richard A. Smith Bitworks, Inc. rsmith@xxxxxxxxxxxx 501.846.5777 x204 Sr. Design Engineer http://www.bitworks.com
