> ...audiocs at sbus?  my u5 doesn't have sbus, just PCI and EBUS:

from my dmesg:

flashprom at ebus0 addr 0-fffff not configured
audiocs0 at ebus0 addr 200000-2000ff, 702000-70200f, 704000-70400f, 722000-722003 ipl 35 ipl 36: CS4231A
audio0 at audiocs0: full duplex
hme0 at pci1 dev 1 function 1: Sun Happy Meal Ethernet, rev. 1
hme0: interrupting at ivec 3021
hme0: Ethernet address 08:00:20:99:fc:91
nsphy0 at hme0 phy 1: DP83840 10/100 media interface, rev. 1
nsphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto

Apparently noone added it to GENERIC kernels, simply an oversight.
(I just fixed that.)

Martin