Umass/Pass0 CDRW USB external issue

[scott renna]

Hello,

I've been trying to get my USB CDRW drive to work on
5.2.  I've found this post on a patch for umass :

http://marc.theaimsgroup.com/?l=freebsd-current&m=107450556315054&w=2

I'm currently building world right now so that it may
work.  But here's my question, if this patch is what I
need, what is the proper way to mount this external
device?  I see the device showing up as pass0 and I
have scbus, da, and atapicam in my kernel.

I've seen people say that you need to mount a device
like this as /dev/da0, but my /dev has no da devices. 
dmesg recognizes the device:

umass0: Acer Communications & Multimedia Inc. USB
Optical Storage Device, rev 1.00/a.03, addr 3

pass0 at umass-sim0 bus 0 target 0 lun 0
pass0: <USB CD-R/RW 6X4X6 E.CC> Removable CD-ROM
SCSI-0 device
pass0: 1.000MB/s transfers
pass1 at ata1 bus 0 target 1 lun 0

And here's what camcontrol devlist -v shows:

scbus0 on umass-sim0 bus 0:
<USB CD-R/RW 6X4X6 E.CC>           at scbus0 target 0
lun 0 (pass0)
scbus1 on ata0 bus 0:


I'm very confused on what to mount, pass0 ? scbus0 ? 
umass-sim0?  umass0?  

Anyone have any advice?

scott

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