[ Adding linux-usb on CC. ] On Fri, Aug 17, 2018 at 10:41:20PM +0300, Алексей Болдырев wrote: > please add support to device from cdc-acm: > > Bus 004 Device 003: ID 1782:3d00 Spreadtrum Communications Inc. Can you please post the output of "lsusb -v" for this device? Thanks, Johan