Hi there, A month or so ago I added hotplug support to the i915 driver based on the modesetting branch. The patches currently reside in the modesetting-101-hotplug branch in the main fd.o drm repo. http://cgit.freedesktop.org/mesa/drm/log/?h=modesetting-101-hotplug
So how does it work. First we receive the interrupt from the hardware, the intel HW has pretty good hotplug support. In the interrupt handler I tried to do as little as possible. Which is to tell a waiting worker thread that a hotplug event has happened and which output was affected. The worker thread then does all of the actual probing and EDID parsing, since this takes far to long to be handled in a interrupt. Now I didn't implement a way for userspace to get these events, since it was just me going at it and that interface need some more thought to it. What it does do, is detect the status. On disconnect it turns the output and corresponding crtc off. On connect we turn the output on again along with updating the information in the intel_fb code. A few notes on the branch: I had to change the interrupt handling a bit, because the code treats the interrupt registers as 16bit due to the i8XX legacy. But i9XX interrupt registers are 32bit, but those bits weren't used until now that is. And because I don't have any i8XX I was a bit reluctant to push these patch straight to the modesetting-101 branch. I would now like, after discussion, merge the branch into modesetting-101. Cheers Jakob. ------------------------------------------------------------------------- SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
