[linux-dvb] Technotrend C1500 budget dvb-c with QAM128 channels

Michael Krufky mkrufky at gmail.com
Fri Feb 24 06:21:52 CET 2006


On 2/22/06, Michael Krufky <mkrufky at linuxtv.org> wrote:
> Mattias Nordstrom wrote:
> >>>>I have a TT C1500 card (saa7146, STV0297) which had problems tuning
> >>>>channels at QAM128 (like the ones in the Finnish HTV / Welho network).
> >>>>
> >>>>A fix which seems to work perfectly so far is to change the delay for
> >>>>QAM128 to the same values as for QAM256 in stv0297_set_frontend(),
> >>>>stv0297.c (line ~395, kernel 2.6.15):
>
> >>diff -r dc34f5271cc1 linux/drivers/media/dvb/frontends/stv0297.c
> >>--- a/linux/drivers/media/dvb/frontends/stv0297.c     Tue Feb 21 03:31:12 2006
> >>+++ b/linux/drivers/media/dvb/frontends/stv0297.c     Tue Feb 21 13:16:25 2006
> >>@@ -393,10 +393,6 @@
> >>              break;
> >>
> >>      case QAM_128:
> >>-             delay = 150;
> >>-             sweeprate = 1000;
> >>-             break;
> >>-
> >>      case QAM_256:
> >>              delay = 200;
> >>              sweeprate = 500;
> >
> >
> > Signed-off-by: Mattias Nordstrom <nordstrom at realnode.com>

I've applied the patch to my tree.

Mauro,

Please pull from http://linuxtv.org/hg/~mkrufky/v4l-dvb for the
following changesets:

-fix stv0297 for qam128 on tt c1500 (saa7146)
-set 'make ivtv-update' to depend on 'make ivtv' instead of 'make ivtv-checkout'
-TUV1236d: declare buffer as static const

Signed-off-by: Michael Krufky <mkrufky at linuxtv.org>



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