On Wed, Apr 30, 2008 at 9:11 PM, Bernard Blackham <[EMAIL PROTECTED]> wrote: > [EMAIL PROTECTED] wrote: > > > Can anyone point me in the right direction to info about the framebuffer > and customizing it to allow for an SPI output interface? > > > > Take a look at the deferred I/O support for framebuffers in the kernel. It > only went in very recently (2.6.23ish IIRC), so you'll need to use the git > kernel (or try and backport the def I/O framework to your kernel - I suspect > it's not going to be trivial). But the framework makes life much easier for
Thanks for the support Bernard. Currently, defio works in 2.6.25 only. Although I first pushed defio in 2.6.22, it doesn't actually work there due to a bug, you'd need to pull a couple of patches from 2.6.25 if you wanted it to work with older kernels. Keep in mind that you'll only need defio if you want to mmap the framebuffer. If you just want standard open/read/write/close access to an SPI framebuffer, adding a plain fbdev driver will be fine for you. Regards, jaya _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
