Re: Kernelspace to Userspace message passing
From: Pete Zaitcev (zaitcev_at_yahoo.com)
Date: Mon, 14 Jul 2003 17:33:57 GMT
On Mon, 14 Jul 2003 13:03:32 +0200, Johnny Choque wrote:
> Now one alternative would be that the app polls the kernel
> using IOCTLs
> to see if any message is waiting. How can I avoid that and send a message
> directly to userspace from kernelspace as in a callback or signal?
You cannot. Fork a thread and make it blocking in the
polling ioctl to avoid spinning.