Hello, I need to write a driver for a device that controls several screens, It is the first time I have to write a driver for darwin/macos x so I am not sure where the best place to start is. I would really appreciate it if someone can give me some advice. This device is used in an exhibition place to show several videos and demonstrations in several screens at the same time. The screens are independent and can show different information at any given time, they also can be co-ordinated as a big screen or in the simplest case, they can just show the same information. Our immediate need is to be able to use the device to show different information in the screens, we need to be able to switch with software the screen where the Quartz system is painting. I believe the options are frame buffer drivers or HID drivers, what would be the best approach for this? thank you very much in advance for your help Tenoch de La Cruz Jasendo Technologies Ltd. _______________________________________________ darwin-kernel mailing list | darwin-kernel@lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.