Re: [libusb] Help

[Ларионов Д. <scu...@ya...>]

> If you can use c++, there is a great library for discovering and
> communicating with serial devices called QSerialPort

That's... a stretch, to put it mildly. QSerialPort is a class which is a part of Qt, which in turn is an utterly gargantuan framework.
Personally I find it (Qt) great and almost exclusively use it all the time instead of STL, but even I wouldn't blanket-endorse it for all situations.


> On 2024-09-20 13:55, Tim Roberts wrote:
> 
>>> How to know the ttyUSBx/ttyACMx/... name with libusb? I could see that when I
>>> connect the device in the path dev/serial/by-id/ a file
>>> is created where its name is the components of string
>>> descriptor and it is linked with the ttyUSBx/ttyACMx/...
>>> (path: /dev/tty...) file which I need to open this file
>>> descriptor and start the communication.
>>
>> Well, hang on. If you have a ttyXXX device, then that means
>> you already have a driver that is converting the USB device into
>> a serial device. You cannot use libusb to talk to a /dev/ttyXXX
>> device. /dev/ttyXXX speaks serial protocol, not USB protocol.
> 
> If you can use c++, there is a great library for discovering and
> communicating with serial devices called QSerialPort
> 
> Jon