[linux-dvb] WinTV HVR-1300 MCE edition not working

Steven Toth stoth at hauppauge.com
Fri Mar 16 15:56:31 CET 2007

Manfred Haelters wrote:
> I've about tried everything possible, but I'm unable to get the 
> fm-radio working (analog TV and dvb-T is working however). I'm still 
> getting these messages in my dmesg all the time the gnomeradio is running:
> [ 1678.576580] tda9887 2-0043: i2c i/o error: rc == -121 (should be 4)
> [ 1678.576930] tda9887 2-0043: i2c i/o error: rc == -121 (should be 4)
> [ 1678.577281] tuner 2-0061: i2c i/o error: rc == -121 (should be 4)
> [ 1678.578513] cx22702_readreg: readreg error (ret == -121)
> [ 1678.578861] cx22702_writereg: writereg error (reg == 0x0d, val == 
> 0x01, ret == -121)
> Could someone please help me out here ?
It looks like the I2C gate on the demod is closed, and the tuning code 
is unable to reprogram the tuner. I don't know why off hand, I've never 
used radio personally.

It also looks like the demod is also not responding to i2c read requests.

After this error occurs, does DVB-T and/or analog tv work correctly? Ie. 
Does the problem clear itself.

Could be a GPIO issue which I could look into. Let me know the the 
answer to the above question.



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