Hi, I just bought a device with a CM6206. Thank you for the quirk that made it work out-of-the-box! I noticed on my DAC that the de-emphasis LED was on. Is this by accident? Below is a patch (based on the info in the CM6206+datasheet+1.7.pdf that I found somewhere) that turns it off.
cheers,
Eric
Index: linux-2.6.36/sound/usb/quirks.c =================================================================== --- linux-2.6.36.orig/sound/usb/quirks.c 2010-11-16 18:55:51.000000000 -0500 +++ linux-2.6.36/sound/usb/quirks.c 2010-11-16 18:55:57.000000000 -0500 @@ -387,7 +387,7 @@ static int snd_usb_cm6206_boot_quirk(struct usb_device *dev) { int err, reg; - int val[] = {0x200c, 0x3000, 0xf800, 0x143f, 0x0000, 0x3000}; + int val[] = {0x2004, 0x3000, 0xf800, 0x143f, 0x0000, 0x3000};
for (reg = 0; reg < ARRAY_SIZE(val); reg++) { err = snd_usb_cm106_write_int_reg(dev, reg, val[reg]);