Arch Linux

Lehthanis

Member

Registered: 2013-09-26

Posts: 21

Hardware that uses cp210x driver needs a com port?

I have a motion tracker that is USB. It's an inertiacube 4. When you download their software it comes with a cp210x driver. In arch already has that and according to lsmod I now have a /dev/ttyUSB0 device. When I try to run an application that uses the tracker it starts scanning com ports and then says no tracker found. Could it be that I still need to install their cp210x driver (rpm that I have to build) or is there a way to assign a com port to /dev/ttyUSB0.

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 19,772

Re: Hardware that uses cp210x driver needs a com port?

It is more likely that there is a permissions problem and that your user space software does not have the rights to open and use that port.  What are the output of groups
What is the output of ls -l /dev/ttyUSB0

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Lehthanis

Member

Registered: 2013-09-26

Posts: 21

Re: Hardware that uses cp210x driver needs a com port?

Oh man, I thought for sure you had it figured out, but when I got home and gave it a shot...I got the following:

groups: wheel uucp adbusers robbie

ls: crw-rw---- 1 root uucp 188, 0 May  1 13:43 /dev/ttyUSB0

So it looks like I'm in the uucp group...unless I'm reading this wrong.

Thanks for helping though!

mich41

Member

Registered: 2012-06-22

Posts: 796

Re: Hardware that uses cp210x driver needs a com port?

Run

strace -f -e open /usr/bin/their-software-whatever

to see which ports it tries to open and what happens.

Is it possible that you need to specify exact port with command line switches or some /etc file?

R00KIE

Forum Fellow

From: Between a computer and a chair

Registered: 2008-09-14

Posts: 4,734

Re: Hardware that uses cp210x driver needs a com port?

What's the output of 'id'?

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Tm90aGluZyB0byBzZWUgaGVyZSwgbW92ZSBhbG9uZy4K