The DVB-T USB device should be connected to a USB2 connection for it
to receive the appropriate power. Connecting a DVB-T worked out of
the box under Ubuntu 9.04 but on Ubuntu 9.10 (100220) and later, after
connecting the device to a USB port the appropriate firmware,
dvb-usb-vp7045-01.fw, was not being found. We can see this is
the problem by looking at the dmesg log:
$ dmesg -T [643435.719338] usb 2-4.3: new high-speed USB device number 12 using ehci-pci [643435.827368] usb 2-4.3: New USB device found, idVendor=13d3, idProduct=3223 [643435.827371] usb 2-4.3: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [643436.669006] dvb-usb: found a 'DigitalNow TinyUSB 2 DVB-t Receiver' in cold state, will try to load a firmware [643436.669686] dvb-usb: did not find the firmware file. (dvb-usb-vp7045-01.fw) Please see linux/Documentation/dvb/ for more details on firmware-problems. (-2) [643436.669692] dvb_usb_vp7045: probe of 2-4.3:1.0 failed with error -2 [643436.669896] usbcore: registered new interface driver dvb_usb_vp7045 [643441.124937] usb 2-4.3: USB disconnect, device number 12
The firmware can be copied from <www.linuxtv.org> and copied into
/lib/firmware for it to be loaded.
$ cd /lib/firmware $ sudo wget http://www.linuxtv.org/downloads/firmware/dvb-usb-vp7045-01.fw
Then plug in the USB device and look that dmesg reports that it is noticed:
[646474.551035] usb 2-4.3: new high-speed USB device number 13 using ehci-pci [646474.658955] usb 2-4.3: New USB device found, idVendor=13d3, idProduct=3223 [646474.658959] usb 2-4.3: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [646474.659326] dvb-usb: found a 'DigitalNow TinyUSB 2 DVB-t Receiver' in cold state, will try to load a firmware [646474.659382] dvb-usb: downloading firmware from file 'dvb-usb-vp7045-01.fw' [646474.847712] usb 2-4.3: USB disconnect, device number 13 [646474.847738] dvb-usb: generic DVB-USB module successfully deinitialized and disconnected. [646476.593665] usb 2-4.3: new high-speed USB device number 14 using ehci-pci [646476.702909] usb 2-4.3: New USB device found, idVendor=13d3, idProduct=3206 [646476.702913] usb 2-4.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [646476.702915] usb 2-4.3: Product: VP-7045 [646476.702917] usb 2-4.3: Manufacturer: TWINHAN [646476.703403] dvb-usb: found a 'Twinhan USB2.0 DVB-T receiver (TwinhanDTV Alpha/MagicBox II)' in warm state. [646476.857412] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer. [646476.857920] DVB: registering new adapter (Twinhan USB2.0 DVB-T receiver (TwinhanDTV Alpha/MagicBox II)) [646476.929096] dvb-usb: MAC address: 08:ca:1a:c5:a9:ff [646476.940949] usb 2-4.3: DVB: registering adapter 0 frontend 0 (Twinhan VP7045/46 USB DVB-T)... [646476.941143] input: IR-receiver inside an USB DVB receiver as /devices/pci0000:00/0000:00:1d.7/usb2/2-4/2-4.3/input/input7 [646476.941302] dvb-usb: schedule remote query interval to 400 msecs. [646477.096547] dvb-usb: Twinhan USB2.0 DVB-T receiver (TwinhanDTV Alpha/MagicBox II) successfully initialized and connected.
Once the driver is installed you should have a folder
/dev/dvb/adapter0/ containing something like:
$ ls -l /dev/dvb/adapter0/ total 0 crw-rw----+ 1 root video 212, 0 Jan 12 11:10 demux0 crw-rw----+ 1 root video 212, 1 Jan 12 11:10 dvr0 crw-rw----+ 1 root video 212, 3 Jan 12 11:10 frontend0 crw-rw----+ 1 root video 212, 2 Jan 12 11:10 net0
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