[arch-general] Connection through USB to TTL Serial Cable

Anatol Pomozov anatol.pomozov at gmail.com
Wed May 20 19:07:37 UTC 2015


On Wed, May 20, 2015 at 11:55 AM, Csányi Pál <csanyipal at gmail.com> wrote:
> Hello,
> I have a
> USB to TTL Serial Cable.
> On my Arch linux I want to setup a connection through this cable.
> How can I achieve this goal?
> The output of the 'lsusb' command is:
> Bus 002 Device 005: ID 0403:6001 Future Technology Devices
> International, Ltd FT232 USB-Serial (UART) IC
> I'm trying to follow steps described here:
> http://linux-sunxi.org/Cubieboard/TTL
> but I have more difficulties.
> 1. I can't find to install the 'cu' utility neither on Arch linux
> repository nor in AUR.

cu is in Arch repos as it was told above. There are other terminal
applications: minicom, com.

> 2. There is no '/dev/ttyUSB0' on my system here.

Then it means driver has other name. Check 'dmesg' - kernel should
write usb device name that was created. It can be /dev/ttyUSB1, ...
/dev/ttyACM0, ...

Also make sure this file is readable to your user - you might need be
added to right UNIX group.

> So eg.
> screen /dev/ttyUSB0 115200
> doesn't work here:
> Cannot exec '/dev/ttyUSB0': No such file or directory
> I can't find any advices on Arch Wiki.
> Any advices will be appreciated!
> --
> Regards from Pal

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