[ Please respond inline instead of top-posting. ] On Mon, Aug 20, 2018 at 04:50:25PM +0300, Алексей Болдырев wrote: > 20.08.2018, 16:46, "Johan Hovold" <johan@xxxxxxxxxx>: > > [ Reshuffling your reply, and responding inline below ] > > > > On Mon, Aug 20, 2018 at 04:27:37PM +0300, Алексей Болдырев wrote: > >> > 20.08.2018, 11:42, "Johan Hovold" <johan@xxxxxxxxxx>: > >> >> [ 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? > > > >> Bus 004 Device 004: ID 1782:3d00 Spreadtrum Communications Inc. [...] > > Thanks for the details. This isn't a CDC device, so this probably needs > > to be handled by a USB serial driver. What kind of device is it? Does it > > have more than one port? > > > > Judging from the above you should get two ttyUSBx devices if you do: > > > > # modprobe usbserial > > # echo 1782 3d00 > /sys/bus/usb-serial/drivers/generic/new_id > > > > as root. > > > > Are those two ports usable? > I tried to do so, but for some reason I did not answer the serial > port? Ok, so the generic driver does not work. What kind of device is this? A USB-serial adapter? Do you have any way of figuring out what chip is used (e.g. an FTDI or pl2303 chip?), for example, by opening the device? Thanks, Johan