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| author | Devin Heitmueller <dheitmueller@kernellabs.com> | 2009-10-28 23:10:16 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-12-05 18:41:23 -0200 |
| commit | 48c511ed675772bd08044d97756f7f7aae5168eb (patch) | |
| tree | 19f91133199dfad5ab0174ff5d826c0404760328 /drivers/media/video/cx18 | |
| parent | f0cd44b4a1a7465230dfbe1e645d9dc73f83cb13 (diff) | |
| download | blackbird-op-linux-48c511ed675772bd08044d97756f7f7aae5168eb.tar.gz blackbird-op-linux-48c511ed675772bd08044d97756f7f7aae5168eb.zip | |
V4L/DVB (13331): mxl5005s: provide ability to override QAM gain for HVR-1600
The HVR-1600 doesn't use the standard mechanism for computing the gain when
in QAM mode, instead always forcing it to be 0x02. Provide the ability to
override the algorithm on a per-board basis.
This change results in an improvement of 0.4-0.6 dB for QAM tuning.
This work was sponsored by ONELAN Limited.
Cc: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/cx18')
| -rw-r--r-- | drivers/media/video/cx18/cx18-dvb.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/media/video/cx18/cx18-dvb.c b/drivers/media/video/cx18/cx18-dvb.c index f402e798e323..54a6fd3f7af5 100644 --- a/drivers/media/video/cx18/cx18-dvb.c +++ b/drivers/media/video/cx18/cx18-dvb.c @@ -61,6 +61,7 @@ static struct mxl5005s_config hauppauge_hvr1600_tuner = { .top = MXL5005S_TOP_25P2, .mod_mode = MXL_DIGITAL_MODE, .if_mode = MXL_ZERO_IF, + .qam_gain = 0x02, .AgcMasterByte = 0x00, }; |
