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authorArnuschky <arnuschky@xylon.de>2010-07-27 05:48:08 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2010-08-08 23:43:06 -0300
commitc75079cc2addedf958358b88306591a5f9c4fb00 (patch)
treed68c984fa804f8169f734bdab60a8660ec09e581 /drivers
parentede67a30f549e1872be57e7d6f5f9dd97bb372ae (diff)
downloadlinux-2.6.38-lt-ux500-c75079cc2addedf958358b88306591a5f9c4fb00.tar.gz
V4L/DVB: Report supported QAM modes on bt8xx
Here a small patch to get a TwinHan VT DST DVB-T card working with kernels >= 2.6.32. Analogously to http://linuxtv.org/hg/v4l-dvb/rev/0e735b509163 I had to: "Fill in the .caps field in struct dst_dvbt_ops (around line 1763) with all the supported QAM modulation methods to match the capabilities of the card as implemented in function dst_set_modulation (around line 502). Note that beginning with linux kernel version 2.6.32 the modulation method is checked (by function dvb_frontend_check_parameters in file drivers/media/dvb/dvb-core/dvb_frontend.c) and thus tuning fails if you use a modulation method that is not present in the .caps field." Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/media/dvb/bt8xx/dst.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/media/dvb/bt8xx/dst.c b/drivers/media/dvb/bt8xx/dst.c
index 248a2a9d841..caa4e18ed1c 100644
--- a/drivers/media/dvb/bt8xx/dst.c
+++ b/drivers/media/dvb/bt8xx/dst.c
@@ -1763,7 +1763,15 @@ static struct dvb_frontend_ops dst_dvbt_ops = {
.frequency_min = 137000000,
.frequency_max = 858000000,
.frequency_stepsize = 166667,
- .caps = FE_CAN_FEC_AUTO | FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO
+ .caps = FE_CAN_FEC_AUTO |
+ FE_CAN_QAM_AUTO |
+ FE_CAN_QAM_16 |
+ FE_CAN_QAM_32 |
+ FE_CAN_QAM_64 |
+ FE_CAN_QAM_128 |
+ FE_CAN_QAM_256 |
+ FE_CAN_TRANSMISSION_MODE_AUTO |
+ FE_CAN_GUARD_INTERVAL_AUTO
},
.release = dst_release,