Add hook to obtain the irq signal on HDMI connectivity

Add hook to obtain the irq signal on HDMI connectivity

[Kavuri, Sateesh]

Hi,

I would like to add a hook to the i915 driver to get a signal whenever an external
connection is made, say a HDMI cable connection. Where would the right place be?
i915_irq.c?
Once I get a signal, I would have to read the EDID data (which I am already done 
with) and finally this connection needs to be signaled to the user space (for which
the functionality already exists).

Can someone point me to the right place?

Thanks,
Sateesh

Re: Add hook to obtain the irq signal on HDMI connectivity

[Kenneth Graunke]

On 11/24/2011 03:21 AM, Kavuri, Sateesh wrote:
> Hi,
> 
> I would like to add a hook to the i915 driver to get a signal whenever an external
> connection is made, say a HDMI cable connection. Where would the right place be?
> i915_irq.c?
> Once I get a signal, I would have to read the EDID data (which I am already done 
> with) and finally this connection needs to be signaled to the user space (for which
> the functionality already exists).
> 
> Can someone point me to the right place?
> 
> Thanks,
> Sateesh

I believe there is already infrastructure in place for this, so I doubt
you'll need to add new hooks to the driver.  But display is not my area
of expertise; hopefully someone else here can point you at them.