diff options
author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-11-11 09:46:23 -0500 |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-11-11 09:46:23 -0500 |
commit | 39ce61a846c8e1fa00cb57ad5af021542e6e8403 (patch) | |
tree | fc2ece73b3c54a805f9ac85d390f2388f741b46c /include/linux/dvb | |
parent | e9eb0dadba932940f721f9d27544a7818b2fa1c5 (diff) |
[media] dvb: Allow select between DVB-C Annex A and Annex C
DVB-C, as defined by ITU-T J.83 has 3 annexes. The differences between
Annex A and Annex C is that Annex C uses a subset of the modulation
types, and uses a different rolloff factor. A different rolloff means
that the bandwidth required is slicely different, and may affect the
saw filter configuration at the tuners. Also, some demods have different
configurations, depending on using Annex A or Annex C.
So, allow userspace to specify it, by changing the rolloff factor.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'include/linux/dvb')
-rw-r--r-- | include/linux/dvb/frontend.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/dvb/frontend.h b/include/linux/dvb/frontend.h index 1b1094c35e4f..d9251df867b5 100644 --- a/include/linux/dvb/frontend.h +++ b/include/linux/dvb/frontend.h | |||
@@ -329,6 +329,8 @@ typedef enum fe_rolloff { | |||
329 | ROLLOFF_20, | 329 | ROLLOFF_20, |
330 | ROLLOFF_25, | 330 | ROLLOFF_25, |
331 | ROLLOFF_AUTO, | 331 | ROLLOFF_AUTO, |
332 | ROLLOFF_15, /* DVB-C Annex A */ | ||
333 | ROLLOFF_13, /* DVB-C Annex C */ | ||
332 | } fe_rolloff_t; | 334 | } fe_rolloff_t; |
333 | 335 | ||
334 | typedef enum fe_delivery_system { | 336 | typedef enum fe_delivery_system { |