Re: [alsa-devel] No sound with C-Media CMI8788

Clemens Ladisch wrote:

I wrote:

...

In the file sound/pci/oxygen/oxygen_lib.c, after the line containing "subdevice = oxygen_read_eeprom(chip, 2);" (about line number 262), please add the line

printk(KERN_INFO "subdevice ID: %04x\n", subdevice);

I think the cause for your unknown subdevice ID is that your card does not have an EEPROM chip. (This is a feature, it saves you $0.25!) In this case, adding the following lines at that place should make the driver load correctly:

if (subdevice == 0xffff) subdevice = 0x8788;

Okay, that worked. But I assume that this is a device specific solution right? If there are other cards without an EEPROM chip, forcing them to 0x8788 shouldn't make sense? How should this be correctly handled?

Thanks!