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I have some device connected via USB to Raspberry Pi 3 with Raspbian installed.
I have protocol specification, it is simple serial protocol with hex commands and data.
However I have no idea, where to find drivers... In lsusb I see:

Bus 001 Device 006: ID 0483:5740 STMicroelectronics STM32F407

But here is nothing about UART<->USB drivers...

pi@raspberrypi:~ $ ls -la /dev/ | grep ttyS have no results also.

Olga Pshenichnikova
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    What about `ls -l /dev/ttyACM*` ? Those are the nodes created for standard USB CDC ACM devices. – David Grayson Mar 28 '19 at 18:07
  • Yes, it is there, actually ) if you want, put it as answer, I will check it as right answer. – Olga Pshenichnikova Mar 29 '19 at 08:37
  • In my opinion this belongs to [SU](https://superuser.com). But even on [SO](https://stackoverflow.com) there are literally dozens of duplicates like https://stackoverflow.com/q/13914226 – Alex P. Mar 29 '19 at 18:17

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What about ls -l /dev/ttyACM* ? Those are the nodes created for standard USB CDC ACM devices.

David Grayson
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