LeTV DTMB USB stick

Overview/features

• USB interface

Components used

• HDIC HD2312A-QFN48 (manufacturer shanghai_gaoqing）
• CY7C68013A-56
• GT4256

Identification

dmesg info

[ 2481.584543] usb 2-2: new high-speed USB device number 4 using ehci-pci
[ 2482.725926] usb 2-2: New USB device found, idVendor=04b4, idProduct=1004, bcdDevice= 0.00
[ 2482.725946] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 2482.725953] usb 2-2: Product: DtmbUSB
[ 2482.725959] usb 2-2: Manufacturer: NERC

Output from lsusb

~$ lsusb
Bus 002 Device 004: ID 04b4:1004 Cypress Semiconductor Corp. DtmbUSB. 
~$ lsusb -v -d 04b4:1004
Bus 002 Device 004: ID 04b4:1004 Cypress Semiconductor Corp. DtmbUSB
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  idVendor           0x04b4 Cypress Semiconductor Corp.
  idProduct          0x1004 
  bcdDevice            0.00
  iManufacturer           1 
  iProduct                2 
  iSerial                 0 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x0020
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0x80
      (Bus 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     0x82  EP 2 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x86  EP 6 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0

Drivers

As far as we known Windows driver is Cypress Generic USB Driver [link] There is no Linux driver for this for now.