site_archiver@lists.apple.com Delivered-To: darwin-dev@lists.apple.com hi, Question 1: I'm wondering what could have caused this problem? Question 3: Also could i add code to my application to wake up the USB and Firewire? Detailed Description of the problem: ==================================== cheers and thanks. mvo _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.appl... I have problem that my G5 (a 1st generation Dual 1.8 and 2nd generation Dual 2.5) USB and Firewire are dead after running our software for a very longtime. (see description below) Question 2: If I could add something to my source code to prevent this from happening, like polling the USB and the Firewire device through IOKit. The problem never happens on a G4 so it must something specific with the G5 IOKit drivers. We have written a software that transfers video data (2vuy) format to the Decklink card through the QuickTime API and and uses coreAudio output Audio Unit's for the sound. All this happens in threads!!!! We intend to build broadcast solution based on the Decklink card. When we use this system for a very long time (12 hours or more...) we noticed that sometimes on a G5 system (currently never happend on a G4) the USB bus and Firewire bus are not active anymore. When I plugin an iPod the iPod doesn't mount, when i try to attach keyboard the keyboard isn't active or the mouse doesn't get current( no lights in the mouse) etc... Sometimes it doesn't happen for 24 hours, so it is random. The ethernet cable is still working because in System Log i see the information unplugging/plug in appearing, I can still access the machine remotely. I can access the files. My program still runs fine, the clock still keeps on ticking, the fans of the G5 still keeps on working etc. So I'm wondering if the driver of the Decklink card could have caused this? As anyone else seen this kind of problems on a G5 system maybe with different software. This email sent to site_archiver@lists.apple.com