MSI Mega Sky 55801

MSI Mega Sky 55801

A DVB-T USB 2.0 device from MSI.

The Mega Sky 55801 is supported under Linux since kernel 2.6.21. Note that this device is sold as Mega Sky 580. There is also a version of the Mega Sky 580 that uses an mt352 and requires a firmware.

Overview/Features

• USB 2.0, will pass the complete MPEG2 transport stream to the software demuxer.
• MCX connector for antenna
• Remote control

Components Used

• Quantek QT1010 (tuner)
• Zarlink ZL10353
• USB bridge: Genesys Logic GL861

Identification

Bus 001 Device 007: ID 0db0:5581 Micro Star International Mega Sky 5580 DVB-T Tuner
Device Descriptor:
 bLength                18
 bDescriptorType         1
 bcdUSB               2.00
 bDeviceClass            0 (Defined at Interface level)
 bDeviceSubClass         0 
 bDeviceProtocol         0 
 bMaxPacketSize0        64
 idVendor           0x0db0 Micro Star International
 idProduct          0x5581 Mega Sky 5580 DVB-T Tuner
 bcdDevice            1.02
 iManufacturer           2 PC-DTV Receiver
 iProduct                3 PC-DTV Receiver
 iSerial                 4 00000001
 bNumConfigurations      1
 Configuration Descriptor:
   bLength                 9
   bDescriptorType         2
   wTotalLength           80
   bNumInterfaces          2
   bConfigurationValue     1
   iConfiguration          0 
   bmAttributes         0xa0
     (Bus Powered)
     Remote Wakeup
   MaxPower              500mA

Making it Work

Works out of the box since 2.6.23. However, the combination QT1010+ZL10353 is problematic. If you are having problems with reception, try reducing the signal strength. Disable boosters and/or use an attenuator.

Firmware

None required.

Drivers

The following drivers are needed for this device:

Sample Kernel Output

# dmesg
[ 6413.760114] usb 1-1: new high speed USB device using ehci_hcd and address 7
[ 6413.967529] usb 1-1: configuration #1 chosen from 1 choice
[ 6413.970611] dvb-usb: found a 'MSI Mega Sky 55801 DVB-T USB2.0' in warm state.
[ 6413.970682] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer.
[ 6413.975257] DVB: registering new adapter (MSI Mega Sky 55801 DVB-T USB2.0)
[ 6413.986510] DVB: registering adapter 2 frontend 0 (Zarlink ZL10353 DVB-T)...
[ 6414.014463] Quantek QT1010 successfully identified.
[ 6414.014478] dvb-usb: MSI Mega Sky 55801 DVB-T USB2.0 successfully initialized and connected.
[ 6414.036228] input: PC-DTV Receiver PC-DTV Receiver as /devices/pci0000:00/0000:00:02.1/usb1/1-1/1-1:1.1/input/input13
[ 6414.036405] generic-usb 0003:0DB0:5581.0006: input,hidraw0: USB HID v1.01 Keyboard [PC-DTV Receiver PC-DTV Receiver] on usb-0000:00:02.1-1/input1