On 25/10/2024 03:07, Dan Ritter wrote:
Roy J. Tellason, Sr. wrote:
Oct 24 15:14:28 Workstation1 kernel: [1915052.251232] usb 7-1.4.4: ch341-uart
converter now attached to ttyUSB0
Oct 24 15:14:28 Workstation1 mtp-probe: checking bus 7, device 13:
"/sys/devices/pci0000:00/0000:00:1a.7/usb7/7-1/7-1.4/7-1.4.4"
Oct 24 15:14:28 Workstation1 mtp-probe: bus: 7, device: 13 was not an MTP device
[...]
mtp is media transfer protocol, an alternative to USB Mass
Storage. Hence thunar volume manager.
MTP likely may be ignored. There is a little chance though that its udev
rule sends something to the device. When installed, this rule executed
for most of (or even for all) plugged USB devices.
Perhaps vendor software sends some commands to the serial port when
print is requested.
