[linux-dvb] two problems with a TechnoTrend Premium 2300 DVB-C (FF)

Lukas Ruetz lukas.ruetz at gmx.at
Sun Feb 12 18:26:39 CET 2006


> Teppo Jalava wrote:
> > On 2/11/06, Teppo Jalava <tjjalava at gmail.com> wrote:
> >> Don't know what's the current status, but there is a patch for this
> >> that was posted about a year ago. I don't know if it's included in the
> >> CVS, but here's one I've been using for my kernel (2.6.13).
> >
[cut]
>
> Howdy, tt-Users!
>
> I think I should mention, that this patch misses a little detail
> (besides it's architectural problems): the last line sets what is called
> loudspeaker volume.
> But the msp34x5G chip manual states, that (bits 15:8 of register) 0x0004
> is for adjusting loudness gain instead, which is not quite the same.
> Setting this to 0x7f00 instead totally overdrives analog audio, so the
> correct setting would be 0x0000 (at least this works for me).
> So if you are going to use this, you want to append this to the patch
> (instead of the last line):
>
> - 	msp_writereg(av7110, MSP_WR_DSP, 0x0004, 0x7f00); // loudspeaker volume
> +	msp_writereg(av7110, MSP_WR_DSP, 0x0004, 0x0000); // loudness gain
>
>
> There should be a newly written version of the dvb-ttpci driver
> available soonly which then makes correct use of the msp3400 module ...
>
> cheers
> Steffen

hi teppo and steffen - thanks for responding. i will try to compile the kernel
with the changed patch. it would be very nice to have this patch in the next
kernel release.

lukas



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