site_archiver@lists.apple.com Delivered-To: darwin-kernel@lists.apple.com On Oct 6, 2006, at 16:14 , Thulli wrote: = Mike _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.a... On Oct 6, 2006, at 6:37 PM, Rick Mann wrote: Option 1. If you are interested only in read and write system calls and don't want to do polling, take a look at this. http://developer.apple.com/technotes/tn2005/tn2127.html. You need to write a kauth hook and user land client process. If the kauth hook kext could provide a device interface, then the user land client can block on a "read(/dev/yourKauthDevice)" and process what you read with no polling. Oooh! This might work very well. No, it will work very badly. Please look at the iostat code I referenced yesterday. If you don't follow my advice, please at least let us know the name of your product so that I can avoid it like the plague. This email sent to site_archiver@lists.apple.com