Octoprint No serial port

[Raddiver]

Ok octoprint users....
I need a hand. I just got my pi, its up on the network but it doesn't show the serial port of the printer in the web interface.

Here is the dump from lsusb
Bus 001 Device 006: ID 046d:0825 Logitech, Inc. Webcam C270
Bus 001 Device 005: ID 27b1:0001 ##I think this one is the printer##
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

This is the output from dmesg when i unplug and re-plug in the printer.
1113.009064] usb 1-1.3: USB disconnect, device number 5
[ 1120.160531] usb 1-1.3: new full-speed USB device number 7 using dwc_otg
[ 1120.274861] usb 1-1.3: New USB device found, idVendor=27b1, idProduct=0001
[ 1120.274882] usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=220
[ 1120.274895] usb 1-1.3: Product: RAMBo
[ 1120.274907] usb 1-1.3: Manufacturer: UltiMachine (ultimachine.com)

Any ideas?

[Raddiver]

I've tried putting in /dev/ttyprintk and /dev/ttyAMA* to no avail.
AMA* does nothing
prinktk gives a permissions error.
here is a listing of what is in /dev/tty*

tty tty11 tty15 tty19 tty22 tty26 tty3 tty33 tty37 tty40 tty44 tty48 tty51 tty55 tty59 tty62 tty9
tty0 tty12 tty16 tty2 tty23 tty27 tty30 tty34 tty38 tty41 tty45 tty49 tty52 tty56 tty6 tty63 ttyAMA0
tty1 tty13 tty17 tty20 tty24 tty28 tty31 tty35 tty39 tty42 tty46 tty5 tty53 tty57 tty60 tty7 ttyprintk
tty10 tty14 tty18 tty21 tty25 tty29 tty32 tty36 tty4 tty43 tty47 tty50 tty54 tty58 tty61 tty8 ttyS0

Im linux stupid and stumped.

[tks546]

Did you use the OctoPi image on this page? http://octoprint.org/download/

Also did you have the M2 powered up and connected while you powered up the Pi?

Other than edit the network config file, that's all I did to get octoprint working.

-Tom

[Raddiver]

Did you use the OctoPi image on this page? http://octoprint.org/download/

I did.

Also did you have the M2 powered up and connected while you powered up the Pi?

I did not on the first try. I had it connected but not powered up. Thinking that might have been the problem, i reflashed the sd card and made sure it was powered on first,I also disconnected the webcam trying to reduce possibilities.

[Raddiver]

an update so others can learn.
After parsing dmesg as soon as i was able to, after yet another clean install, I found the following error message.
can't set config #1, error -32
This is the line that is preventing the creation of the /dev/ttyACM0 reference.
If i hook up a USB 1.1 hub inline to the printer, everything works.
Id prefer not to have extra clutter on my design bench, so if you have suggestions, in the words of Ross Perot "I'm all ears"