I have not tried this driver, however, I can tell you this is not an 
audio driver.  This driver is made to attach to the serial port and pick 
up WWVB (60 kHz) digital signals.  The circuit is rather simple:  Just a 
60 kHz resonator (usually tuned loop antenna) connected to an 
amplifier.  The amplifier output toggles the DTD line (I think) as the 
60 kHz signal is pulsed.  The driver picks up the 1's and 0's as it is 
toggled and converts it into time info.

Just do a web search on "WWVB receiver computer" and you will find 
several links on either building one or buying one.

David
--
Matt SF wrote:

>Hi--
>
>I was trying to see if the WWV audio driver with the ntpd distribution 
>would work on NetBSD, but it doesn't seem happy about something:
>
>13 Mar 20:14:03 ntpd[15745]: ioctl(TIOCSCTTY, 0) fails for clock I/O: 
>Invalid argument 
>13 Mar 20:14:03 ntpd[15745]: internal error: refclockio structure not found
>13 Mar 20:14:03 ntpd[15745]: configuration of 127.127.36.0 failed
>
>What I don't get is why the driver seems to be trying to access a 
>serial port, or maybe when compiled on NetBSD it interprets its access to 
>/dev/audio as serial ioctl activity (?)  The text in the driver 
>(refclock_wwv.c) only mentions SunOS/Solaris support but in a later doc I 
>see Mills also mentions FreeBSD.  I've also seen posts on Usenet where 
>Linux users seem to be using the driver...thus I thought I'd try it out.
>
>Has anyone else tried to use this driver on NetBSD and/or had any success 
>with it?  I've tried ntpd as included in 1.6, in the pkgsrc, and built 
>from the recent 4.1.1c-rc1 code.
>
>thanks!
>-Matt 
>
>  
>