Messages in this thread | | | From | Jon Tombs <> | Subject | Getting sound out of a Leadtek WinView 601 | Date | Sun, 21 Mar 1999 22:13:48 +0100 (MET) |
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Hi All,
I have a leadtek Winview 601 TV/FV card. It is a philips tuner based bttv 848 card, I have sorted out the GPIO_OUT_EN, bits by sping the windows program, and now have the tuner sound output working, but only with very low volume.
The card has some kind of programable stereo amplifier, which appears to be connected to the GPIO bits 7,6,5,4 and 3. By writing to these bits I can get the sound levels to change, but I can't find any logic to the changes. (repeating the same sequences doesn't always get the same result).
- Any ideas what leadtek has wired up (maybe a software i2c!) - Anyone have anysoftware to spy and store the changes on these lines under windows (The update speed of Booktree's bt848are is too low to see any changes).
On a separate theme, while fighting the sound, I have discovered how the infrared remote control on the card works. Any pointers to the correct API to implement (and dev major/minor) for a remote control device? The card simply generates a 6bit code and interrupt for each remote control button.
Jon Tombs --- Dpto. de Ingeniería Electrónica Escuela Superior de Ingenieros Universidad de Sevilla. SPAIN
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