[linux-dvb] Lost frontend

Bryant, Dominic (UK) Dominic.Bryant at baesystems.com
Wed Feb 14 10:27:30 CET 2007


Can nobody help me with the problem below?
It's got to be something simple as it appears everything is working
apart from the frontend being registered?  HELP!!!

I've attached the results of 'lsusb -v' in case it may be of any help.

Thanks in advance. 

Dom



-----Original Message-----
From: linux-dvb-bounces at linuxtv.org
[mailto:linux-dvb-bounces at linuxtv.org] On Behalf Of Bryant, Dominic (UK)
Sent: 07 February 2007 13:20
To: linux-dvb at linuxtv.org
Subject: [linux-dvb] Lost frontend

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Hello, this is my first post to this (or any) mailing list, so sorry if
this is the wrong place for this or anything like that...

About a week ago I got a Kworld DVB-T 300U box.  I plugged it into my
Ubuntu 6.10 system and dmesg said that it couldn't find the firmware.  I
downloaded the firmware, put it in the correct place (/lib/firmware I
think), plugged in the DVB box, ran Kaffeine, scanned for the channels
and everything worked fine. It carried on working for the next couple of
days during which time I tried to install MythTV (which couldn't find
any channels).  The day after that I go to watch the TV using Kaffeine
and it doesn't work any more.  Dmesg now gives the following:

[17289667.668000] usb 5-6: new high speed USB device using ehci_hcd and
address 11 [17289667.800000] usb 5-6: configuration #1 chosen from 1
choice [17289667.800000] dvb-usb: found a 'KWorld Xpert DVB-T USB2.0' in
cold state, will try to load a firmware [17289667.844000] dvb-usb:
downloading firmware from file 'dvb-usb-adstech-usb2-02.fw'
[17289667.932000] usb 5-6: USB disconnect, address 11 [17289667.932000]
dvb-usb: generic DVB-USB module successfully deinitialized and
disconnected.
[17289669.684000] usb 5-6: new high speed USB device using ehci_hcd and
address 12 [17289669.816000] usb 5-6: configuration #1 chosen from 1
choice [17289669.816000] dvb-usb: found a 'KWorld/ADSTech Instant DVB-T
USB2.0'
in warm state.
[17289669.816000] dvb-usb: will pass the complete MPEG2 transport stream
to the software demuxer.
[17289669.816000] DVB: registering new adapter (KWorld/ADSTech Instant
DVB-T USB2.0).
[17289669.816000] dvb-usb: no frontend was attached by 'KWorld/ADSTech
Instant DVB-T USB2.0'
[17289669.816000] input: IR-receiver inside an USB DVB receiver as
/class/input/input6
[17289669.816000] dvb-usb: schedule remote query interval to 150 msecs.
[17289669.816000] dvb-usb: KWorld/ADSTech Instant DVB-T USB2.0
successfully initialized and connected.

For some reason it is no longer attaching a frontand to the device. I've
searched everywhere, read the past 5 or 6 months of mailing list
archives and asked on the Ubuntu forum but not got anywhere.

Last night I even did a manual install of the v4l drivers even though I
shouldn't need to with my kernel (I thought it might help) but no
change.  Why would it suddenly stop working?  Please help as it was
great when it did work.


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-------------- next part --------------
Bus 005 Device 006: ID 06e1:a334 ADS Technologies, Inc. 
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  idVendor           0x06e1 ADS Technologies, Inc.
  idProduct          0xa334 
  bcdDevice            0.00
  iManufacturer           1 
  iProduct                2 
  iSerial                 0 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           46
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              500mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           4
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      0 
      bInterfaceProtocol      0 
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x01  EP 1 OUT
        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     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     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
can't get device qualifier: Operation not permitted
can't get debug descriptor: Operation not permitted
cannot read device status, Operation not permitted (1)


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