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How do I enable CONFIG_SND_DMA_SGBUF?

Question asked by Andrew Ellis on Apr 16, 2013
Latest reply on Apr 18, 2013 by Andrew Ellis

Hi,

 

I'm trying to build a sound card driver for my project, but when I build the driver the build process fails with the error:

 

/home/user/Drivers/MircoGrabber/Linux/audio/grabber-audio.c:96:9: error: implicit declaration of function 'snd_pcm_substream_sgbuf' [-Werror=implicit-function-declaration]

 

I have found that snd_pcm_substream_sgbuf is located in \linux3.0.35\include\sound\pcm.h

 

There is above a define:

#ifdef CONFIG_SND_DMA_SGBUF

 

My question is: where in the kernel build menu do I enable CONFIG_SND_DMA_SGBUF? I'm assuming that some where there is another dependancy that I've not yet found?

 

I'm using the SabreSD board.

 

 

Kind regards

 

Andrew


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