Le 22/01/2026 à 17:20, tomas@tuxteam.de a écrit : [...]
Ugh. This suggests that the device "appears" just as a block device (I dimly remember some -- I think it was GPRS? -- modems which did this, offering the windows (what else?) drivers on the DOS file system. Once tickled with some undocumented magic, they offered an USB serial, which behaved like a plain boring modem, Hayes command set and all).
[...]The maintainer of the usb-modeswitch package will surely be glad to know you consider him a magician since they maintain a magical package ;-)
https://packages.debian.org/en/stable/usb-modeswitch