Issues with new I2C driver.

[psparodi]

Hello, I'm experiencing issues while migrating to the new ESP-IDF I2C driver (in ESP-IDF 5.3.1). The problem arises when I try to use the bus in asynchronous mode. Due to limited documentation and the recent implementation of the new driver, I found only one example indicating that to enable async mode, you need to set the "trans_queue_depth" parameter (in the bus config structure of type i2c_master_bus_config_t) to a value other than zero.

When I set this parameter, I can see the bus operating in async mode. However, after some time, the ESP resets with a "Guru Meditation Error."

Another issue is that I’m not entirely sure what value to set for "trans_queue_depth" or exactly how this buffer (assuming it is a buffer) operates, especially since the amount of data I send over the bus varies with each transmission.

I would appreciate any examples or documentation on how to use the I2C driver in asynchronous mode. For context, I'm using the bus to send data to an OLED screen.

Regards.