FelipeMdeO opened a new pull request, #15920:
URL: https://github.com/apache/nuttx/pull/15920
This pull request includes a change to the `esp_txint` function in the
`arch/risc-v/src/common/espressif/esp_usbserial.c` file. The change primarily
involves removing an optimization workaround and adding a call to flush the
transmit FIFO.
After this change the usbserial config is able to work using all
optimization levels.
Changes in `esp_txint` function:
* Removed the `__attribute__((optimize("O0")))` workaround.
* Added a call to `usb_serial_jtag_ll_txfifo_flush()` at the beginning of
the function.Remove workaround related riscv esp32 modules usbserial driver.
## Testing
*Using esp32c6, apply usbconsole config, build and flash, you will be able
to use console by usb.*
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