A USB camera with audio is 2 separate devices - the USB camera and a USB
microphone - effectively attached via a hub internal to the camera case.
Each needs to be initialised separately and microphone issues are
completely separate to the camera driver as it doesn't attempt to touch
audio devices.
Is HAL showing 2 devices when you plug the camera in?
Is your Linux audio/hardware manager attempting to initialise the
microphone?
On Fri, 19 Jun 2009, Arlindo F. Neto wrote:
> Dear,
>
> After much searching on this problem resolved post it here. I think maybe
> you have idea how can fix this.
>
> The Philips SPC530NC webcam does not capture audio. Used the solution
> proposed in (http://openfacts.berlios.de/index-en.phtml?title=Linux_UVC) and
> still not working.
>
> I have seen that when the webcam is used primarily in the windows after you
> restart the computer in the linux audio works perfectly. But if the computer
> is switched off in Linux and the webcam does not capture the audio further.
>
> I am posting the descriptors of the webcam when it works (after use in
> windows) and when it does not work (only with the use on Linux). You can see
> that there is no difference in descriptors. Still I sure that the webcam
> works with Linux after using Windows (dual-boot).
>
> After plug webcam on windows and reboot to linux (webcam's audio working).
> http://pastebin.com/f31d5cd41
>
> Use only Linux to initialize and plug the webcam (webcam's audio does not
> work more).
> http://pastebin.com/f6873b895
>
> I think the webcam has a method for startup of your firmware that oo
> usb_audio is not given.
>
> Thanks for any help.
>
> Best regards,
>
--
If a person, or organisation, starts to play on your fears
it may be that person or organisation that you should fear.
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