Installing a Leadtek DTV Dongle Gold USB Tuner

I decided to add a second tuner to my Myth system. The current tuner I have is a Gigabyte U7100 which serves me fine except for the fact that the remote does not work. The computer shop did not have any of these in stock so I brought a Leadtek DTV Gold USB. It was much cheaper than the Gigabyte at $36 and a quick check beforehand on some posts showed that some people had it working with Linux.

The Leadtek Gold has an Afatech af9015 chip with a TDA18271 tuner. There is also an af9013 in there somewhere. Note that some older Leadtek Gold’s have a different tuner chip.

Doing some searching found that it was not supported by default in Fedora 10 (FC10) but was easy to install. The instructions are on so many blogs and posts so I will not go into the details, see

http://forums.whirlpool.net.au/forum-replies-archive.cfm/997883.html

 but the brief steps are

1. Download v4l for the af9015

This can be done by either downloading the compressed file from http://linuxtv.org/hg/~anttip/af9015/ or using mercurial hg as follows hg clone http://linuxtv.org/hg/~anttip/af9015/

2. Build the source by running make

You will need to have the kernel development files installed. Many posts tell you to get build-essentials and kernel-headers but this is an Ubuntu thing. For Fedora do a yum groupinstall “Development Tools”

3. Download the firmware

from http://www.otit.fi/~crope/v4l-vb/af9015/af9015_firmware_cutter/firmware_files/ and put it in /lib/firmware

4. Then you can do a make install. I chose not to do this and just inserted the modules from the build directory – v4l.

5. Insert the modules by doing the following, if the current ones are loaded you will need to unload them first

insmod dvb-core.ko
insmod dvb-usb.ko
insmod tda18271.ko
insmod af9013.ko
insmod dvb-usb-af9015.ko

6. Then just plug in the Leadtek Gold

To check that it has installed ok use dmesg or run tail –f /var/log/messages before you insert the Leadtek.

The output should be something like


Apr 27 21:05:23 mythtv kernel: usb 1-1: new high speed USB device using ehci_hcd and address 4
Apr 27 21:05:23 mythtv kernel: usb 1-1: configuration #1 chosen from 1 choice
Apr 27 21:05:23 mythtv kernel: dvb-usb: found a 'Leadtek WinFast DTV Dongle Gold' in cold state, will try to load a firmware
Apr 27 21:05:23 mythtv kernel: firmware: requesting dvb-usb-af9015.fw
Apr 27 21:05:23 mythtv kernel: dvb-usb: downloading firmware from file 'dvb-usb- af9015.fw'
Apr 27 21:05:23 mythtv kernel: dvb-usb: found a 'Leadtek WinFast DTV Dongle Gold' in warm state.
Apr 27 21:05:23 mythtv kernel: dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer. Apr 27 21:05:23 mythtv kernel: DVB: registering new adapter (Leadtek WinFast DTV Dongle Gold)
Apr 27 21:05:24 mythtv kernel: af9013: firmware version:4.95.0
Apr 27 21:05:24 mythtv kernel: DVB: registering adapter 1 frontend 0 (Afatech AF9013 DVB-T)...
Apr 27 21:05:24 mythtv kernel: tda18271 2-00c0: creating new instance Apr 27 21:05:24 mythtv kernel: TDA18271HD/C2 detected @ 2-00c0
Apr 27 21:05:24 mythtv kernel: input: IR-receiver inside an USB DVB receiver as /devices/pci0000:00/0000:00:1d.7/usb1/1-1/input/input10
Apr 27 21:05:24 mythtv kernel: dvb-usb: schedule remote query interval to 150 msecs.
Apr 27 21:05:24 mythtv kernel: dvb-usb: Leadtek WinFast DTV Dongle Gold successfully initialized and connected. Apr 27 21:05:24 mythtv kernel: usb 1-1: New USB device found, idVendor=0413, idProduct=6029
Apr 27 21:05:24 mythtv kernel: usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Apr 27 21:05:24 mythtv kernel: usb 1-1: Product: WinFast DTV Dongle Gold
Apr 27 21:05:24 mythtv kernel: usb 1-1: Manufacturer: Leadtek

Be sure to check that the firmware was installed

Testing

Running ls /dev/dvb/adapter should show demux0 dvr0 frontend0 net0

To test it I did the following, you will need to have dvb-utils installed to do this (yum dvb-utils)

1. Create a channels file by running scandvb /usr/share/dvb/dvb-t/au-Sydney_North_Shore > ~/.mplayer/channels.conf
2. Run mplayer as mplayer dvb://
3. Use h and l to change channels

Remote

Next was to get the remote working. You may have noticed from the install messages that a HID device was created when the Leadtek was installed. This is because the Leadtek is recognised as an usbhid device. However there seems to be a problem with this, a key is recognized by the dvb remote module and the hid module and both are sent to /dev/input and are presented to the active application. This has some advantages in that you do not need to run something like lirc, the keys pressed are passed to the current application just as if it was pressed on a USB keyboard. Although it means that you get 2 keys pressed for every one. What is worse is that there seems to be a key repeating problem, when a key is pressed it initially appears and then keeps on repeating This seems to be coming from the usbhid module rather than the dvb-usb-remote module as I disabled the code in dvb-usb-remote and it still happened. A bit of searching showed that usbhid has a quirks mechanism where you can disable usbhid for specified USB Vendor Id. In this case for the Leadtek Gold the Vendor Id is 0x0413:0x6029. On Ubuntu this is quite easy as the usbhid is loaded as a module and therefore can be done in /etc/modprobe.conf by adding option usbhid quirks=0x0000:0x0000:0x04.

With Fedora, the usbhid is load with the kernel so it has to be dome on the kernel command line. This can be done by changing the bootloader. I use Grub so just edit /boot/grub/grub.conf and change

kernel /vmlinuz-2.6.27.5-117.fc10.i686 ro root=UUID=254134e3-d72f-46b2-b857-75753693b7aa rhgb quiet

to

kernel /vmlinuz-2.6.27.5-117.fc10.i686 ro root=UUID=254134e3-d72f-46b2-b857-75753693b7aa rhgb quiet usbhid.quirks=0x0413:0x6029:0x04

Once this was done I had the remote working. No repeats and a single character appearing for each remote key press.

The remote emulates a keyboard with MCE functionality these however are not standard MythTv keys. There are a number of ways to fix this

1. Change the MythTv key mappings – this has the disadvantage that the keyboard can not be used to control MythTv,
2. Do linux key mappings, this has the same disadvantage as the first option.
3. Use lirc to do the mapping.

Lirc setup requires a device to read from, a setup file and a remote config file. When the Leadtek Gold is inserted it creates an input at /dev/input/eventx. The event number allocated can be determined by looking at /proc/ bus/input/devices

So to pass the keys from the dvb driver to lirc change /etc/sysconfig/lirc to


# Remote settings required by gnome-lirc-properties
MODEL="DTV Gold" VENDOR="Leadtek"
# Remote settings required by gnome-lirc-properties
LIRC_DRIVER="dev/input"
MODULES=""
LIRC_DEVICE="/dev/input/event10"
LIRCD_CONF="''" # Receiver settings required by gnome-lirc-properties
RECEIVER_MODEL="DTV"
RECEIVER_VENDOR="Leadtek"

Then put the lirc config file in /etc/lircd.conf

# /etc/lirc/lircd.conf
# brand: Leadtek
# model no. of remote control: Y04G0051
# devices being controlled by this remote: DTV2000H (Rev. J)

begin remote
  name            Y04G0051
  bits            16
  eps             30
  aeps            100
  one             0 0
  zero            0 0
  gap             263992
  pre_data_bits   16
  pre_data        0x8001

  begin codes
 
 
 
 
      POWER           0x0164
      TV              0x0179
      SKIPB           0x00A8
      PLAY            0x00CF
      SKIPF           0x00D0
      TIME            0x0167
      REW             0x019C
      STOP            0x0080
      FWD             0x0197
      RECORD          0x00A7
       1               0x0002
       2               0x0003
       3               0x0004
       4               0x0005
       5               0x0006
       6               0x0007
       7               0x0008
       8               0x0009
       9               0x000A
       EPG             0x016D
      FULLSCREEN      0x0177
      PREV            0x0081
      SNAPSHOT        0x00D4
       DOT             0x0034
       0               0x000B
      MENU            0x008B
       RECORDSTOP      0x0080
      UP              0x0067
      DOWN            0x006C
      OK              0x0160
      LEFT            0x0069
      RIGHT           0x006A
      MUTE            0x0071
       XXX            0x008E
       VOL_UP          0x0073
       VOL_DOWN        0x0072
       CH_UP           0x0192
       CH_DOWN         0x0193
      VIDEO           0x0189
      AUDIO           0x0188
       RED             0x018E
       GREEN           0x018F
       YELLOW          0x0190
       BLUE            0x0191
      TELETEXT        0x0184
      CHSURF          0x016B
      PIP             0x00B5
      BOSS            0x0001
  end codes
end remote

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