ATI/AMD TV Wonder HD 600 USB: Difference between revisions
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* http://mcentral.de/wiki/index.php5/Em2880 |
* http://mcentral.de/wiki/index.php5/Em2880 |
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[[ATSC USB Devices]] |
[[ATSC USB Devices]] |
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[[Category:ATSC USB Devices]] |
Revision as of 22:04, 3 May 2009
A hybrid ATSC USB 2.0 device by ATI/AMD.
Support for this device was added to the LinuxTV codebase on July 26, 2008 (hg 8492), targeted for inclusion in the 2.6.27 kernel. There is also a third party driver available (see the Drivers section below for details).
Overview/Features
This device supports ATSC (i.e. OTA Digital TV) and analog NTSC. It also has a connector on the side for an A/V cable dongle. The package includes a small dipole antenna and a short USB extension cable.
Components used:
- Xceive xc3028LCQ (tuner & analog demodulator)
- LG DT3303 (digital demodulator)
- Texas Instruments tvp5150 (video decoder)
- Empiatech em2883 (USB bridge and analog audio)
Identification
The device identifies itself as a "Advanced Micro Devices, Inc" and the subsystem information provided by lsusb -v is 0438:b002.
Making it Work
Firmware
In order to use the LinuxTV driver, you need to download and install the firmware. Here is the procedure to follow:
Download the firmware with something like:
wget http://steventoth.net/linux/hvr1400/xc3028L-v36.fw
copy the file so it can be picked up by the Linux kernel:
cp xc3028L-v36.fw /lib/firmware
Drivers
There are two potential sources of drivers for this device:
- Use a recent snapshot of LinuxTV's v4l-dvb drivers
- Both analog and ATSC digital reception are supported
- Read the above mentioned Firmware section for details on installing the proper firmware.
- Seek out support provided by Mrec's drivers: see: mcentral
Analog Audio Issue
Analog audio appears to be problematic so you will likely need to employ SOX as a helper application, prior to starting the viewing app, in order to get any sound in popular apps like tvtime etc.
sox -r 48000 -w -c 2 -t ossdsp /dev/dsp1 -t ossdsp /dev/dsp
Note that there may be an associated delay (i.e. not in sync).
The root of the problem is that the em28xx presents itself as a USB audio device, and applications such as tvtime do not know to associate the video stream with the audio stream.
Note that Markus Rechberger maintains a version of tvtime that is patched to work around this limitation: Mcentral.de tvtime
Sample kernel output
provide the relevant portion of dmesg here
Remote Control Support
The ATI/AMD TV Wonder HD 600 USB ships with a remote control, for which support in the LinuxTV driver was added in hg version 9629 (November 16, 2008).
It is unknown whether it is supported in the mrec driver.