Using /proc/tty/drivers only indicates which tty drivers are loaded. If you're looking for a list of the serial ports check out /dev/serial, it will have two subdirectories: by-id and by-path.

Use mmcli --list-modems to see connected GSM modems. It shows number identifiers (starting from zero). Then use mmcli --modem=0 (or another number) to see details. These details reveal "ports" like ttyUSB0. I'm not quite certain what you're asking.

Jan 2, 2014 · Here is a quick method . After plugging in USB cable, you just issue: dmesg | grep tty This will output the tty devices detected by kernel, in the order that they were detected and with a time stamp.

Sep 2, 2016 · ttyS0 is the device for the first UART serial port on x86 and x86_64 architectures. If you have a PC motherboard with serial ports you'd be using a ttySn to attach a modem or a serial console. ttyUSB0 is the device for the first USB serial convertor.

The device number keeps growing if devices are removed/inserted. lsusb -t can be used to correlate the device numbers with usb bus/port. Then, 'lsusb -d devID' can determine what device is on which port.

Jul 17, 2020 · Basic research led me to these commands (pictures for reference): ls /dev/ttyUSB* To list out the USB-serial ports that are active. lsusb To get more information about the USB buses and connected devices. Is there a way to relate these two results (or an alternative) to figure out what I need?

May 4, 2021 · I'm connecting a USB-to-RS-485 adapter to my Raspberry Pi. How do I know which /dev/ttyXXX it corresponds to? I'm using Raspberry Pi model B+ Update with goldilock's answer:

Mar 18, 2024 · One naive and erroneous approach is to iterate only over the /dev/ttyS* directories, as we can also reach serial devices through other interfaces. With a USB to RS-232 adapter, the serial devices are under /dev/ttyUSB*, as in the example. Similarly, other namespaces may contain other serial devices.

Feb 11, 2023 · I am trying to map a usb port to a tty for serial commuication. I am attempting to connect a JMRI to a device connected via usb cable. This is using an old laptop to control model trains. The lsusb command recognizes the device. The JMRI is looking for a ttyS0: to ttyS31: and ttyACM0 to connect to.

Nov 22, 2018 · I'm trying to open a Serial communication between a Raspberry Pi 3 (model B, running on Raspbian) and a device (a traffic counter to be precise). I've a USB to Serial cable, using the rs232 standa...