I tried to do so, but for some reason I did not answer the serial port? 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. >> Couldn't open device, some information will be missing >> Device Descriptor: >> bLength 18 >> bDescriptorType 1 >> bcdUSB 1.10 >> bDeviceClass 0 (Defined at Interface level) >> bDeviceSubClass 0 >> bDeviceProtocol 0 >> bMaxPacketSize0 64 >> idVendor 0x1782 Spreadtrum Communications Inc. >> idProduct 0x3d00 >> bcdDevice 0.01 >> iManufacturer 0 >> iProduct 0 >> iSerial 0 >> bNumConfigurations 1 >> Configuration Descriptor: >> bLength 9 >> bDescriptorType 2 >> wTotalLength 55 >> bNumInterfaces 2 >> bConfigurationValue 1 >> iConfiguration 0 >> bmAttributes 0xc0 >> Self Powered >> MaxPower 100mA >> Interface Descriptor: >> bLength 9 >> bDescriptorType 4 >> bInterfaceNumber 0 >> bAlternateSetting 0 >> bNumEndpoints 2 >> bInterfaceClass 255 Vendor Specific Class >> bInterfaceSubClass 0 >> bInterfaceProtocol 0 >> iInterface 0 >> Endpoint Descriptor: >> bLength 7 >> bDescriptorType 5 >> bEndpointAddress 0x81 EP 1 IN >> bmAttributes 2 >> Transfer Type Bulk >> Synch Type None >> Usage Type Data >> wMaxPacketSize 0x0040 1x 64 bytes >> bInterval 0 >> Endpoint Descriptor: >> bLength 7 >> bDescriptorType 5 >> bEndpointAddress 0x02 EP 2 OUT >> bmAttributes 2 >> Transfer Type Bulk >> Synch Type None >> Usage Type Data >> wMaxPacketSize 0x0040 1x 64 bytes >> bInterval 0 >> Interface Descriptor: >> bLength 9 >> bDescriptorType 4 >> bInterfaceNumber 1 >> bAlternateSetting 0 >> bNumEndpoints 2 >> bInterfaceClass 255 Vendor Specific Class >> bInterfaceSubClass 0 >> bInterfaceProtocol 0 >> iInterface 0 >> Endpoint Descriptor: >> bLength 7 >> bDescriptorType 5 >> bEndpointAddress 0x83 EP 3 IN >> bmAttributes 2 >> Transfer Type Bulk >> Synch Type None >> Usage Type Data >> wMaxPacketSize 0x0040 1x 64 bytes >> bInterval 0 >> Endpoint Descriptor: >> bLength 7 >> bDescriptorType 5 >> bEndpointAddress 0x04 EP 4 OUT >> bmAttributes 2 >> Transfer Type Bulk >> Synch Type None >> Usage Type Data >> wMaxPacketSize 0x0040 1x 64 bytes >> bInterval 0 > > 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? > > Thanks, > Johan
