Hi, Jon Corbet's been working on the XO-1.5 camera driver for us, and while doing so he found a V4L2 bug which is probably one of the reasons that we're having problems with XO-1 camera on all post-8.2 builds.
The workaround is to build the sensor driver into the kernel, and the camera driver as a module. I've made the equivalent change for the kernel that has been built here: http://xs-dev.laptop.org/~dsd/repos/f11-xo1/kernel-2.6.31_xo1-20091211.1834.1.olpc.813348c.i586.rpm Untested, just wanted to get the word out. Note that you may have to load the camera driver (cafe_ccic) manually, if it doesn't automatically get loaded. Word is going round that on a SoaS build for XO (which uses something close to OLPC's 2.6.30 kernel, I think), someone recently managed to capture a photo from the command line. If someone is up for a small task, it would be good to start changing these "words going round" to some actual solid information. Anyone want to head up these efforts and to start http://wiki.laptop.org/go/Reviving_XO1_camera ? At the very least it would be nice to have some solid documentation on where the problem is (and isn't). Is it in ov7670, cafe_ccic, v4l2, gstreamer, xf86-video-geode, or..? How can you tell? Does the above kernel help? What's the exact command you can use on F12 SoasXO to take a photo? What's the corresponding error if you do that on F11? etc. Daniel _______________________________________________ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel