Background: Rescan USB Serial Converter?Summary: if you boot a Mac with a USB to serial device (for example) already connected or if you connect that device after it boots without it already connected, an entry for it will be created in /dev/If you disconnect that device, its entry in /dev/ disappears, which is to be expected.However if you reconnect that device, its entry in /dev/ is not created and cannot be made to reappear until after rebooting the Mac.Example:iMac7:dev john$ ls /dev/tty.* /dev/tty.Bluetooth-Incoming-Port /dev/tty.iPhone-WirelessiAP iMac7:dev john$ # Connect the device iMac7:dev john$ ls /dev/tty.* /dev/tty.Bluetooth-Incoming-Port /dev/tty.KeySerial1 /dev/tty.USA28X1423P1.1 /dev/tty.USA28X1423P2.2 /dev/tty.iPhone-WirelessiAP iMac7:dev john$ # Disconnect the device iMac7:dev john$ ls /dev/tty.* /dev/tty.Bluetooth-Incoming-Port /dev/tty.iPhone-WirelessiAP iMac7:dev john$ # Reconnect the device iMac7:dev john$ ls /dev/tty.* /dev/tty.Bluetooth-Incoming-Port /dev/tty.iPhone-WirelessiAPAfter disconnecting the USB to serial device, the device /dev/tty.KeySerial1 and its related devices /dev/tty.USA28X1423P1.1 and /dev/tty.USA28X1423P2.2 are gone for good and will not reappear until after a reboot.This behaviour exists as described in El Cap, High Sierra and Catalina, which leads me to believe it's been that way since the beginning and is working as intended. As far as I know a Linux system will repopulate /dev/ automatically, but I am not certain of that.Is there a workaround? What can I do to force a Mac to repopulate /dev/ as though the device were connected the first time subsequent to a reboot?