Harry Coin wrote:
Wilson & Group:
Thanks for the attention. Getting some idea of signal strength at the
DVIco Fusion light tuner really matters when trying to debug reception
/ cabling / amp distribution problems.
In a related matter, I find that the M$ version of the software
running on the same box has no problems finding all the local UHF ATSC
stations, but the Linux version doesn't seem to have the tuning right
for the ATSC station broadcasting here on UHF channel 49. I notice
some frequency tables end in 0000 and others end a fixed offset up
from that.
Last, as it happens I write device drivers for a living as well. I'd
like to read the datasheets for the chips used in the DVICo Fusion
Lite, particularly the tuner related ones. Can you help with links to
those? I'm thinking of cooking up a little reception diagnostic tool
that would have made my struggles easier. I'm willing to put in the
time to understand the chipsets.
Harry-
Which kernel version are you running? There was a typo in the tuner
frequency range definition, and that might explain your difficulty in
tuning certain stations. I believe that the fix was applied late in the
2.6.16.y series, and it is already in 2.6.17.
You can upgrade your driver to the current version in the v4l-dvb master
mercurial repository hosted on linuxtv.org, which already contains the
tuner fix, and the snr reg fix provided earlier in this thread.
http://linuxtv.org/repo (howto)
Hope this helps,
Michael Krufky
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