here's what worked for me on my Z50:

http://mail-index.netbsd.org/port-hpcmips/2002/04/06/0004.html

hth,

billy ball

On Tue, 4 Jun 2002, Adam wrote:

> I am currently messing with the HPCMips port on a Z50/NEC VR4121
> processor, and would like to get sound working, trying about 3 different
> kernels, including -CURRENT i cannot seam to makedev /dev/audio
> 
> can anyone help me out here? or send me to a howto? ive been looking for a
> few days with no luck..
> 
> Thanks
>  -- Adam
>