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No TTY connected to a Jetson TX2

+1 vote

Hi, i am able to use the USB TTY over my Mac, but when connected to a Jetson TX2 board, the camera works great but there is no USB TTY appearing in dmesg. 

[   14.665740] input: JeVois-A33 Smart Camera as /devices/3530000.xhci/usb1/1-2/1-2.2/1-2.2:1.0/input/input6
[   14.665847] usbcore: registered new interface driver uvcvideo
[   14.665848] USB Video Class driver (1.1.1)

Any ideas how to investigate?

asked Mar 20, 2017 in Hardware Questions by bwhitman (170 points)

1 Answer

+1 vote
 
Best answer

on our Linux hosts here, lsmod reveals that we have a cdc_acm module loaded. Maybe it does not get loaded on your Jetson. You may need to install some extra packages for modem support, or maybe just try

modprobe cdc_acm

cdc_acm is the module that would handle the serial-over-USB communications on your host.

answered Mar 21, 2017 by JeVois (46,580 points)
selected Mar 22, 2017 by bwhitman
Ah, I see.

modprobe: FATAL: Module cdc_acm not found in directory /lib/modules/4.4.15-tegra

For now I've got it working over the UART pins just fine on the external connector, and will look at getting that module in there. Thanks
commented Mar 22, 2017 by bwhitman (170 points)
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