Re: m68k: trying accessing fb memory
Daniel Glöckner <[email protected]>
| Newsgroups | gmane.linux.uclinux.devel |
|---|---|
| Message-ID | <[email protected]> |
On Thu, Dec 13, 2012 at 07:30:54PM +0100, angelo wrote: > yes, should be quite easy to do as you mentioned, but requires minimal > changes in the kernel, and i must keep the unofficial changes stored > here locally with the current tree. I don't see your problem with that. You are using a two years old kernel. There is no point in trying to stay close to the official release. > For this reasons, my idea is to setup 2 or 3 ioctl's at driver level: > > - one to get memory address (direct memory map) > - one to update all the screen > - one to update a specific surface area > > What do you think is better ? Are you asking me if I favor a proprietary hack over the clean way? As Gavin already pointed out, in cases like yours a popular solution is to use a timer to periodically send updates to the LCD. If you can call IOCTLs to update the screen, you might as well just use write instead of mmap. Daniel _______________________________________________ uClinux-dev mailing list [email protected] http://mailman.uclinux.org/mailman/listinfo/uclinux-dev This message was resent by [email protected] To unsubscribe see: http://mailman.uclinux.org/mailman/options/uclinux-dev