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-How to get the bt8xx cards working
-1) General information
-This class of cards has a bt878a as the PCI interface, and require the bttv driver
-for accessing the i2c bus and the gpio pins of the bt8xx chipset.
-Please see Documentation/dvb/cards.txt => o Cards based on the Conexant Bt8xx PCI bridge:
-Compiling kernel please enable:
-a.)"Device drivers" => "Multimedia devices" => "Video For Linux" => "Enable Video for Linux API 1 (DEPRECATED)"
-b.)"Device drivers" => "Multimedia devices" => "Video For Linux" => "Video Capture Adapters" => "BT848 Video For Linux"
-c.)"Device drivers" => "Multimedia devices" => "Digital Video Broadcasting Devices" => "DVB for Linux" "DVB Core Support" "Bt8xx based PCI Cards"
-Please use the following options with care as deselection of drivers which are in fact necessary
-may result in DVB devices that cannot be tuned due to lack of driver support:
-You can save RAM by deselecting every frontend module that your DVB card does not need.
-First please remove the static dependency of DVB card drivers on all frontend modules for all possible card variants by enabling:
-d.) "Device drivers" => "Multimedia devices" => "Digital Video Broadcasting Devices"
- => "DVB for Linux" "DVB Core Support" "Load and attach frontend modules as needed"
-If you know the frontend driver that your card needs please enable:
-e.)"Device drivers" => "Multimedia devices" => "Digital Video Broadcasting Devices"
- => "DVB for Linux" "DVB Core Support" "Customise DVB Frontends" => "Customise the frontend modules to build"
- Then please select your card-specific frontend module.
-2) Loading Modules
-Regular case: If the bttv driver detects a bt8xx-based DVB card, all frontend and backend modules will be loaded automatically.
-Exceptions are:
-- Old TwinHan DST cards or clones with or without CA slot and not containing an Eeprom.
-People running udev please see Documentation/dvb/udev.txt.
-In the following cases overriding the PCI type detection for dvb-bt8xx might be necessary:
-2a) Running TwinHan and Clones
- $ modprobe bttv card=113
- $ modprobe dst
-Useful parameters for verbosity level and debugging the dst module:
-verbose=0: messages are disabled
- 1: only error messages are displayed
- 2: notifications are displayed
- 3: other useful messages are displayed
- 4: debug setting
-dst_addons=0: card is a free to air (FTA) card only
- 0x20: card has a conditional access slot for scrambled channels
-The autodetected values are determined by the cards' "response string".
-In your logs see f. ex.: dst_get_device_id: Recognize [DSTMCI].
-For bug reports please send in a complete log with verbose=4 activated.
-Please also see Documentation/dvb/ci.txt.
-2b) Running multiple cards
-Examples of card ID's:
-Pinnacle PCTV Sat: 94
-Nebula Electronics Digi TV: 104
-pcHDTV HD-2000 TV: 112
-Twinhan DST and clones: 113
-Avermedia AverTV DVB-T 771: 123
-Avermedia AverTV DVB-T 761: 124
-DViCO FusionHDTV DVB-T Lite: 128
-DViCO FusionHDTV 5 Lite: 135
-Notice: The order of the card ID should be uprising:
- $ modprobe bttv card=113 card=135
-For a full list of card ID's please see Documentation/video4linux/CARDLIST.bttv.
-In case of further problems please subscribe and send questions to the mailing list:
-2c) Probing the cards with broken PCI subsystem ID
-There are some TwinHan cards that the EEPROM has become corrupted for some
-reason. The cards do not have correct PCI subsystem ID. But we can force
-probing the cards with broken PCI subsystem ID
- $ echo 109e 0878 $subvendor $subdevice > \
- /sys/bus/pci/drivers/bt878/new_id
-Authors: Richard Walker,
- Jamie Honan,
- Michael Hunold,
- Manu Abraham,
- Uwe Bugla,
- Michael Krufky