[ErichSt]

When working on a Windows machine where USB ports are read-only by policy, Calibre issues error "Error communicating with device" and doesn't connect.

It would be nice if connecting to a device and read-only operations from the device, like copying books from the device to Calibre, still worked in this case.

The full message is:
calibre, version 5.34.0
ERROR: Error: Error communicating with device

Failed to access files in the main memory of your device. You should contact the device manufacturer for support. Common fixes are: try a different USB cable/USB port on your computer. If you device has a "Reset to factory defaults" type of setting somewhere, use it. Underlying error: [Errno 13] Permission denied: 'D:\\driveinfo.calibre'

Traceback (most recent call last):
File "calibre\devices\usbms\driver.py", line 162, in get_device_information
File "calibre\devices\usbms\driver.py", line 134, in _update_driveinfo_file
PermissionError: [Errno 13] Permission denied: 'D:\\driveinfo.calibre'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "calibre\gui2\device.py", line 87, in run
File "calibre\gui2\device.py", line 472, in _get_device_information
File "calibre\devices\eb600\driver.py", line 89, in get_device_information
File "calibre\devices\usbms\driver.py", line 171, in get_device_information
File "calibre\devices\usbms\driver.py", line 152, in raise_os_error
OSError: Failed to access files in the main memory of your device. You should contact the device manufacturer for support. Common fixes are: try a different USB cable/USB port on your computer. If you device has a "Reset to factory defaults" type of setting somewhere, use it. Underlying error: [Errno 13] Permission denied: 'D:\\driveinfo.calibre'