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 C-media on-board sound cards in FreeBSD??
Author: CoderZ 
Date:   26-01-03 05:09

Hey,

I've been re-compiling, rebooting, and re-reading everything I can find about doing sound under FreeBSD. I am at the point of almost giving up.

I have the C-media CMI9738 on-board sound card, which there seems to be no documentation on (at least not in english; I don't read taiwanese).

I've added "device pcm", "option PNPBIOS", etc, to a kernel and re-compiled, rebooted, but no matter what I do, there is no "pcm0" or "pcm1" device listed in dmesg.

Should I spend $10 and go get a cheapo sound-blaster?

What's the most likely sound card to succeed?

Thanks y'all

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 Re: C-media on-board sound cards in FreeBSD??
Author: k 
Date:   27-01-03 05:12

If it's not showing up in messages, did you do a MAKEDEV after
you recompiled? I don't know anything about that card but if it's
Soundblaster compatible, you might try compiling in device sbc
in your kernel and see if that might work.

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 Re: C-media on-board sound cards in FreeBSD??
Author: Eng-Wee Yeo 
Date:   28-01-03 21:51

Try adding "device csa" under "device pcm".

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 Re: C-media on-board sound cards in FreeBSD??
Author: Eng-Wee Yeo 
Date:   28-01-03 22:05

Oops... case of having the fingers type faster than the brain. The "device csa" line applies to Crystal chipsets.

Anyways, the supported C-media chipsets on the FreeBSD 4.7 HCL are the CMI8338 and CMI8738. Initial comparison on the C-media product page (http://www.cmedia.com.tw/e_product_01.htm) does suggest that the CM9738 might be a different beast from the CM8738.

I wish you good luck in your endeavor.

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