Technisat SkyStar USB 2 HD CI

A DVB-S2 USB 2.0 Device from Technisat It is currently unsupported and is partially working.

It seems to be an clone of AzureWave DVB-S2 USB_CI - AD-SB300 (7050) [1] from twinhan.

Overview/Features

This is a USB 2.0 device capable of receiving DVB-S and DVB-S2 tranponders including a CI-Slot.

Output of lsusb -v:

Bus 002 Device 005: ID 14f7:0001  
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  idVendor           0x14f7 
  idProduct          0x0001 
  bcdDevice            0.02
  iManufacturer           1 DTV-DVB
  iProduct                2 UDST70XX
  iSerial                 3 0008C9F000DD
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           32
    bNumInterfaces          1
    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     0x0200  1x 512 bytes
        bInterval             100
      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               1
Device Qualifier (for other device speed):
  bLength                10
  bDescriptorType         6
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  bNumConfigurations      1
Device Status:     0x0002
  (Bus Powered)
  Remote Wakeup Enabled

Components Used

STMicroelectronics STB0899 multistandard demodulator (DVB-S and DVB-S2).

Identification

Vendor ID: 14f7 Product ID: 0001 or 0002 (Rev. 2)

Making it Work

The device is partially working with recent kernels, but it refuses to tune to any DVB-S2 transponder, locks up your system for some seconds if you are trying to do so and crashes from time to time with usb transport errors.

To make DVB-S2 working, you have to compile the recent drivers from git://linuxtv.org/media_build.git with the following patch: https://patchwork.linuxtv.org/patch/22003/ - the patch has been rejected because of the bad quality, but is currently your only chance to make it working. (and is working fine, at least with my two tuners (Rev. 1 and 2))

If needed, download the firmware for the card: (sudo) wget -O /lib/firmware/dvb-usb-az6027-03.fw https://github.com/OpenELEC/dvb-firmware/raw/master/firmware/dvb-usb-az6027-03.fw

Now the device is working, but it is crashing every now and again, locking up the whole usb subsystem, especially if you have a Rev. 1 tuner. To fix this, add the following line to /etc/udev/rules.d/99-local.rules:

ACTION=="add", SUBSYSTEM=="usb", ATTR{product}=="SkyStar 2 HD CI", ATTR{power/control}="on"

This will stop the device from going into powersave mode, which seems quite unstable.

After a reboot, everything should be working fine.

External Links

• Product Homepage
• yavdr thead of vdr with S7 terratec -same chip)