diff options
Diffstat (limited to 'drivers/media/dvb-core')
| -rw-r--r-- | drivers/media/dvb-core/Kconfig | 27 | ||||
| -rw-r--r-- | drivers/media/dvb-core/dvbdev.c | 5 |
2 files changed, 30 insertions, 2 deletions
diff --git a/drivers/media/dvb-core/Kconfig b/drivers/media/dvb-core/Kconfig index 90e038d5ffd9..6ffac618417b 100644 --- a/drivers/media/dvb-core/Kconfig +++ b/drivers/media/dvb-core/Kconfig @@ -3,6 +3,32 @@ # DVB device configuration # +config DVB_MMAP + bool "Enable DVB memory-mapped API (EXPERIMENTAL)" + depends on DVB_CORE + depends on VIDEO_V4L2=y || VIDEO_V4L2=DVB_CORE + select VIDEOBUF2_VMALLOC + help + This option enables DVB experimental memory-mapped API, which + reduces the number of context switches to read DVB buffers, as + the buffers can use mmap() syscalls. + + Support for it is experimental. Use with care. If unsure, + say N. + +config DVB_NET + bool "DVB Network Support" + default (NET && INET) + depends on NET && INET && DVB_CORE + help + This option enables DVB Network Support which is a part of the DVB + standard. It is used, for example, by automatic firmware updates used + on Set-Top-Boxes. It can also be used to access the Internet via the + DVB card, if the network provider supports it. + + You may want to disable the network support on embedded devices. If + unsure say Y. + config DVB_MAX_ADAPTERS int "maximum number of DVB/ATSC adapters" depends on DVB_CORE @@ -19,6 +45,7 @@ config DVB_MAX_ADAPTERS config DVB_DYNAMIC_MINORS bool "Dynamic DVB minor allocation" depends on DVB_CORE + default y help If you say Y here, the DVB subsystem will use dynamic minor allocation for any device that uses the DVB major number. diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c index 80b6a71aa33e..959fa2820259 100644 --- a/drivers/media/dvb-core/dvbdev.c +++ b/drivers/media/dvb-core/dvbdev.c @@ -707,9 +707,10 @@ int dvb_create_media_graph(struct dvb_adapter *adap, } if (ntuner && ndemod) { - pad_source = media_get_pad_index(tuner, true, + /* NOTE: first found tuner source pad presumed correct */ + pad_source = media_get_pad_index(tuner, false, PAD_SIGNAL_ANALOG); - if (pad_source) + if (pad_source < 0) return -EINVAL; ret = media_create_pad_links(mdev, MEDIA_ENT_F_TUNER, |