Hello Dirk, thank you for your message. We tried the new image as soon as it was released, but observed the same problem unfortunately. For now we're using the standard Raspberry Pi OS (bookworm) on the RevPi Connect 4, which seems to work fine. Is there any downside in using the official image on t...

Dear KUNBUS-Support, I'm using a RevPI Connect 4 with the most recent stable Image and and up-to-date system and kernel. My application reads about 250kB/s from a device that presents as a virtual COM port over USB. dmesg - snippet [ 6809.763018] usb 1-2: new full-speed USB device number 6 using xhc...