OK, I have understood. So, what about "Serial connected to:" option of Arduino IDE? Is it another feature of ESP32 Arduino Core? As far as I understood, the released library of yours and that option are different alternatives, right? Thats right. My library is alternative for espressif library in a...

ozgbostan wrote: Thanks for your support and contribution. Now, after uploading the example sketch just one time, the CDC flashing will be always available for the upcoming upload procedures, right?

CDC flashing will available as long as CDC is running on device, so you have to add it to your code each time.

I just added persist reboot to my library, which allows to flash without using buttons to enable download mode. My version has small issue, but i think it is better to have it working this way than not having it at all.

Its hard to say if its problem with cable or with OS. I am working on ubuntu, so sd card example works fine, pretty slow, but works. In other hand i tested yesterday on windows 10 virtualbox VM and there was issue in OS layer, which was resetting device every few seconds due to slow response (just g...

By the way, you have just released a library a couple of days ago, does not that library solve the problem that you mentioned about? Yes and no. I am aware that we have issue with tinyusb_init, so i am ignoring return from that function until it wont get fixed in arduino. I also implemented USB per...

Thanks for the discussion. You have anything in your mind to recommend as a solution? I investigated it a bit today and there is something changed in tinyusb library which is in idf-release/v4.2, since branch esp32s2 works good, and by works good i mean if you have flashed USBSerial example from br...

With properly setup paths i get this (only part of logs): /home/chegewara/.espressif/tools/xtensa-esp32-elf/esp-2020r3-8.4.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld: /home/chegewara/demos/esp32s2/forks/UART-test/build/prebuilt/libprebuilt.a: error a...

This should not be needed, but did you try to enter download mode with buttons?

USB library is now available from library manager in arduino IDE.
https://github.com/chegewara/EspTinyUSB