diff options
| author | Manu Abraham <abraham.manu@gmail.com> | 2008-01-18 11:28:48 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-12-29 17:53:21 -0200 |
| commit | 763fbaf65a3f7fd571db427a376e727faeb5bfc5 (patch) | |
| tree | 39192052e71a1de6331822a3b54f4b34763abed4 /drivers/media/dvb/frontends/stb6100.c | |
| parent | 27a330d1240ffeaca8c7cf2a2eb6a5fbeef3c4ec (diff) | |
V4L/DVB (9443): Bug: Bandwidth calculation
Bug #1: The 5 tap equaliser is set to correct simple perturbations
like reflections on the IF cable for DVB-S. In the case of DVB-S2
a more powerful equalizer is used to correct the filter group delay
allowing the bandwidth to be reduced by a factor of 1/3
Bug #2: The ZIF tuner takes badwidth to be set in Hz
Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/dvb/frontends/stb6100.c')
| -rw-r--r-- | drivers/media/dvb/frontends/stb6100.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/dvb/frontends/stb6100.c b/drivers/media/dvb/frontends/stb6100.c index d19a3bfcc5fe..f4c2b8e114bf 100644 --- a/drivers/media/dvb/frontends/stb6100.c +++ b/drivers/media/dvb/frontends/stb6100.c @@ -269,7 +269,7 @@ static int stb6100_set_bandwidth(struct dvb_frontend *fe, u32 bandwidth) dprintk(verbose, FE_DEBUG, 1, "set bandwidth to %u kHz", bandwidth); - bandwidth *= 1000 / 2; /* kHz -> Hz, bw / 2 */ + bandwidth /= 2; /* ZIF */ if (bandwidth > 36000000) /* F[4:0] BW/2 max =31+5=36 mhz for F=31 */ tmp = 31; |