Re: CGDisplayBaseAddress at kernel?
Re: CGDisplayBaseAddress at kernel?
- Subject: Re: CGDisplayBaseAddress at kernel?
- From: Terry Lambert <email@hidden>
- Date: Thu, 21 Jun 2007 16:04:31 -0700
The short answer you are going to get is "no; never".
The longer answer you will get is "whatever you are trying to do
should be done in user space; you are trying to do something in the
kernel that does not belong in the kernel". This will likely involve
one of several kernel/user IPC mechanisms, all of which are documented
with sample code at <http://developer.apple.com/>. The people on this
list capable of discussing them will likely only be willing to discuss
them if you have read the documentation already, and need
clarification on minor issues, after having written your code.
-- Terry
On Jun 21, 2007, at 10:52 AM, rohit dhamija wrote:
Apple people charge money for this service, it would be great if I
can get any hints before taking that route.
Rohit
On 6/21/07, Michael Smith < email@hidden> wrote:
On Jun 21, 2007, at 8:35 AM, rohit dhamija wrote:
> Just an update to my previous post
> Can we have access to these api's at kernel level ?? I require
> CGGetActiveDisplayList and CGDisplayBaseAddress in specific.
>
> Actually i am accessing accessing frambuffer from my user
> application. Now i need to do the same from my kernel extension.
I think you are making a number of flawed architectural assumptions
here, but at this point you have very clearly passed beyond the level
of help you can expect from this list. You should take this matter
up with DTS directly. I would encourage you to follow their advice.
= Mike
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