site_archiver@lists.apple.com Delivered-To: darwin-kernel@lists.apple.com Quinn writes:

o On current systems, there is no (supported :-) way to create an IOUserClient that supports 64-bit user space programs. If you need to support such programs, IOUserClient isn't for you.

FWIW, tradidtional BSD ioctls work just fine for communication with a 64-bit user space program (I'm talking about you calling cdevsw_add() and managing things yourself, as opposed to using an IOKit class). As a bonus, ioctls were faster (ie, lower latency) than the user client stuff as well when I measured them on ppc sometime in the late 10.3 timeframe. Drew _______________________________________________ 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... This email sent to site_archiver@lists.apple.com