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I have an USB-device used for measuring currents. When I connect this device to windows, I get a new device in the device manager, and a new COM port I can use for accessing the device. When I connect it to my linux (ubuntu 14.04) it is recognized (I can see it via dmesg). How can I access it there? Is there a similar thing as a COM-port where I can send commands to?
When I do ls /dev | grep USB, I get nothing in return. When connecting the device, dmesg tells me: 

[17480.693973] usb 3-1: new full-speed USB device number 5 using xhci_hcd
[17480.763788] usb 3-1: New USB device found, idVendor=104d, idProduct=3005
[17480.763798] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[17480.763805] usb 3-1: Product: CONEX-IOD
[17480.763810] usb 3-1: Manufacturer: Newport
[17480.763814] usb 3-1: SerialNumber: A6WXEUPA

Therefore I can not access it via /dev/ttyUSBx. Why?

arc_lupus
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1 Answers1

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It will create a new device, /dev/ttyUSB0 (or a higher number if that already exists).

You can use that like any other file / pipe, depending on what exactly is connected. You will likely need sudo privileges to talk to it, but see this for the fix.

You can see in dmesg, where the device was connected, which port was created.

Community
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Mark Williams
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