[linux-dvb] Re: How to use the drivers from 2.5.x kernels?

[Holger Waechtler <holger@convergence.de>]

Benjamin Forgeau wrote:
> 
> 	Hi you all,
> 
> 	I want to try the DVB drivers from 2.5.x kernels. I downloaded the 
> kernel 2.5.50, it compiles, no problems at all. I discovered some nice 
> ideas in this kernel, like ALSA (not working for now, but that's not 
> the point).
> 
> 	How should we use the drivers??? What is the standard way??

just like before.


> 	In the near future, the DVB drivers will be included in the 2.6.x 
> kernels. Then DVB will be available out-of-the-box for everybody. Then 
> should we just use it like #include<linux/dvb/frontend.h> and so on, 
> without more information??

The API documentation is right now only in the old DVB module. We'll 
have to clean it up and then submit it to the kernel Documentation tree.


> 	I tried to replace the directory /usr/include/linux with a link on 
> /usr/src/linux-2.5.50/include/linux, and tried to compile VDR, but a 
> lot of symbols are defined twice. So it is not the solution. I don't 
> want to hack more before I get an idea on the right way to go. Which 
> one?

most software has the DVB API include path coded somewhere in the 
Makefile or you can pass it by configure-option or environment variable 
before calling make.


> 	Another thing, there is no "version.h" in the kernel include files. 
> Why?? Will it disappear??

This one was omitted by accident, I sent it again to Alan Cox. You 
should find it in the kernel release which includes the next patchset.


> 	And what is the status of OSD in the future releases?? There is a 
> remark in the help message saying that it may not be supported later.

That's correct. Don't rely on it - this interface is very tight bound to 
the AV7110 based DVB cards. Use e.g. DirectFB, SDL, XRender or any other 
portable graphics API when you create a DVB video application.

Holger



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