Very Computer

I have an Avermedia TVPhone98 with TV and FM tuner, based on Brooktree
Bt878. TV works fine, both image and sound, but cant't make FM radio
work. As far as I know, it seems all FM tuner applications are designed
for radio-specific cards, not for TV cards with radio support.

Any ideas ?. Thank you,

Jos Luis Domingo Lpez

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What did you do to get your TV card to work?
I have a Hauppauge Win-TV card that is based on the
BT878 as well.  But I am clueless on how to get it
going.

Quote:> What did you do to get your TV card to work?
> I have a Hauppauge Win-TV card that is based on the =

> BT878 as well. But I am clueless on how to get it
> going.

I'm currently at work and using Windows :-((, so have to go home to use
Linux and get the information you need. By now, what you need is to
compile the module called "bttv", which adds support for BT-based TV
cards. You can find this module on recent (2.2.x) kernels and as
standalone code.

In a day or two i'll provide more and more precise information to get
your card up and running.

Good Luck,
Jos Luis Domingo Lpez

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Quote:> What did you do to get your TV card to work?
> I have a Hauppauge Win-TV card that is based on the =

> BT878 as well. But I am clueless on how to get it
> going.

Here I am again with more precise information.
Once you hay compiled support for TV tuners, stand-alone or as a module
built from kernel sources, you'll end up with the following (and,
perhaps, some more) objects (modules):
bttv.o -> for the capture chip (ie. BT848, BT878, etc)
tuner.o -> for the tuner (choosing a frequency)
msp3400.o -> for the sound decoder
i2c.o -> for communication among components in the card
videodev.o -> not sure :-)
Next, edit /etc/conf.modules and add the following lines:
alias char-major bttv
pre-install bttv modprobe -k msp3400;modprobe -k tuner
options tuner debug=1 type=5
options bttv card=6 radio=1 pll=1 vidmem=0xe00
options i2c verbose=1 scan=1 i2c_debug=0
Th first two (2) lines and the last one are correct, but the third and
fourth ones must be adapted for your system.
On line 3, type must be set to the number corresponding your card's
tuner. Sorry, I forgot to write down the number, but the answer is in
/usr/src/linux/Documentation/video4linux/bttv/INSTALL
The same for line 4, parameters card (card manufacturer and model),
radio (set to 0 if your card lacks FM radio) and pll (clock frequency
for the PLL, depends on PAL or NTSC).
Parameter vidmem sets the graphics card's memory address where overlay
must be done. To give a proper value, execute
cat /proc/pci
and you'll see complete information about PCI and AGP devices on your
computer. Your graphics card will appear like the following:
Bus 0, device 15, function 0:
VGA compatible controller: Matrox Mystique (rev 2).
Medium devsel. Fast back-to-back capable. IRQ 15. Master Capable.
Latency=32.
Non-prefetchable 32 bit memory at 0xe1000000 [0xe1000000].
Prefetchable 32 bit memory at 0xe0000000 [0xe0000008].
Non-prefetchable 32 bit memory at 0xe0800000 [0xe0800000].
Take the first memory address in the Prefetchable line (0xe0000000),
strip off the last 5 zeroes (0xe00) and that is the value of vidmem.
Finally, execute /sbin/modprobe bttv. Verify if the module was loaded
with /sbin/lsmod and dmesg. If so, launch your TV application (I
recommend xawtv) and have fun !.
Hope it helps,
Jos Luis Domingo Lpez

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Thank's Jos,
That's the best and most concise instructions
I've got so far.  Unfortunatly, I'm at work, not
at home, reading with remarq.com.  And it has taken
the lines for /etc/conf.modules and run them all
together.  i'll try and make sence out of it.

On the other hand, I have bttv.o, tuner.o, i2c.o
already in /lib/modules.  modprobe doesn't complain
if I modprobe tuner (for instance).  And lsmod
shows them loaded.  Does this mean the modules
are already compiled??  Or should I not skip the
compile step?

I ask because I don't think I have my compiler installed
yet.  At least i haven't tried it.

Thanks.

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If you have bttv.o, tuner.o and i2c.o, I suppose msp3400.o and
videodev.o should also be there: yes, that means the modules are already
compiled. However, I would recommend a kernel rebuild to adapt it for
your setup, specially if you still work with 2.0.x series.

Quote:> I ask because I don't think I have my compiler installed
> yet. At least i haven't tried it.

It seems you have installed the compiler. Try the following:
gcc  -> C and C++ compiler
make -> "project manager"
ld   -> library linker
If not present, you should install them.

Quote:> Thanks.

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