I am having trouble getting the cmipci driver to recognize more than 2 channels on my sound card. The chip on the card is labeled CMI8768/PCI-8ch. I am using alsa-driver 1.0.16 compiled on CentOS 4.4 (kernel 2.6.9-42.EL). I am using the speaker-test command included with alsa-utils 1.0.16 to test. speaker-test -Dhw:1,0 -c8 -twav (Card 0 is the onboard sound and is using a different driver.) The command fails with the error "Channels count (8) not available for playbacks: Invalid argument." Nothing higher than -c2 will work and the result is the same if I use -Dhw:1,1 or -Dhw:1,2. In my attempt to debug this, I noticed that in the query_chip function in cmipci.c, both of these values are 0: detect = snd_cmipci_read(cm, CM_REG_INT_HLDCLR) & CM_CHIP_MASK2; detect = snd_cmipci_read(cm, CM_REG_CHFORMAT) & CM_CHIP_MASK1; This causes the driver to set chip_version = 33 and max_channels = 2. I tried hacking the driver to set max_channels to 6 or 8 but only succeeded in distorting the sound. cat /proc/asound/card1/cmipci returns this: C-Media CMI8738 (model 33) at 0xec00, irq 201 00: 00 00 00 00 04: 10 00 00 00 08: 00 00 00 00 0c: 00 00 00 00 10: c0 00 00 00 14: 00 00 00 00 18: 00 00 80 04 1c: ff ff df f7 20: 10 01 00 00 24: 00 01 00 04 90: 00 00 00 00 Is there anything else I can try to get this card detected properly? ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
