do I want ch0 or pass1?

[Robert]

On Thu, 21 Jan 2010 20:23:43 -0500
Dan Langille <dan at langille.org> wrote:

> Please CC me on replies.
> 
> I'm running into issues with hard-coding some devices (see recent post
> titled 'device.hints isn't setting what I want').
> 
> Associated with this issue is confusion over whether I want to use ch0
> or pass1.  I have these devices:
> 
> <DEC TL800    (C) DEC 0326>        at scbus1 target 0 lun 0
> (ch0,pass1) <DEC TZ89     (C) DEC 1837>        at scbus1 target 5 lun
> 0 (sa1,pass2)
> 
> My understanding: chio(1) will with ch0, whereas mtx(1) will work with
> pass1.  Is this correct?  More information/elaboration will help I'm
> sure.
> 
> Why do I ask? I can get the tape changer and tape drive hardwired to
> ch0 and sa1 respectively.  I cannot [yet] do the same with pass1.
> 
> Thanks folks.
Hi Dan

You might take a look at this thread. It looks like what you want to do.

http://lists.freebsd.org/pipermail/freebsd-questions/2007-April/146738.html

HTH

Robert