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3869007812
This patch moves the subsystem ID and subsystem vendor ID check from probing function to the PCI generic function by describing subsystem IDs in pci_device_id table. This enables to add new PCI IDs to a device driver pci_ids table at runtime by new_id file in sysfs pci driver tree. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Manu Abraham <manu@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
99 lines
3.8 KiB
Plaintext
99 lines
3.8 KiB
Plaintext
How to get the bt8xx cards working
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==================================
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1) General information
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======================
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This class of cards has a bt878a as the PCI interface, and require the bttv driver
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for accessing the i2c bus and the gpio pins of the bt8xx chipset.
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Please see Documentation/dvb/cards.txt => o Cards based on the Conexant Bt8xx PCI bridge:
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Compiling kernel please enable:
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a.)"Device drivers" => "Multimedia devices" => "Video For Linux" => "Enable Video for Linux API 1 (DEPRECATED)"
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b.)"Device drivers" => "Multimedia devices" => "Video For Linux" => "Video Capture Adapters" => "BT848 Video For Linux"
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c.)"Device drivers" => "Multimedia devices" => "Digital Video Broadcasting Devices" => "DVB for Linux" "DVB Core Support" "Bt8xx based PCI Cards"
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Please use the following options with care as deselection of drivers which are in fact necessary
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may result in DVB devices that cannot be tuned due to lack of driver support:
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You can save RAM by deselecting every frontend module that your DVB card does not need.
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First please remove the static dependency of DVB card drivers on all frontend modules for all possible card variants by enabling:
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d.) "Device drivers" => "Multimedia devices" => "Digital Video Broadcasting Devices"
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=> "DVB for Linux" "DVB Core Support" "Load and attach frontend modules as needed"
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If you know the frontend driver that your card needs please enable:
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e.)"Device drivers" => "Multimedia devices" => "Digital Video Broadcasting Devices"
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=> "DVB for Linux" "DVB Core Support" "Customise DVB Frontends" => "Customise the frontend modules to build"
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Then please select your card-specific frontend module.
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2) Loading Modules
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==================
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Regular case: If the bttv driver detects a bt8xx-based DVB card, all frontend and backend modules will be loaded automatically.
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Exceptions are:
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- Old TwinHan DST cards or clones with or without CA slot and not containing an Eeprom.
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People running udev please see Documentation/dvb/udev.txt.
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In the following cases overriding the PCI type detection for dvb-bt8xx might be necessary:
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2a) Running TwinHan and Clones
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------------------------------
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$ modprobe bttv card=113
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$ modprobe dst
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Useful parameters for verbosity level and debugging the dst module:
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verbose=0: messages are disabled
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1: only error messages are displayed
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2: notifications are displayed
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3: other useful messages are displayed
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4: debug setting
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dst_addons=0: card is a free to air (FTA) card only
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0x20: card has a conditional access slot for scrambled channels
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The autodetected values are determined by the cards' "response string".
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In your logs see f. ex.: dst_get_device_id: Recognize [DSTMCI].
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For bug reports please send in a complete log with verbose=4 activated.
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Please also see Documentation/dvb/ci.txt.
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2b) Running multiple cards
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--------------------------
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Examples of card ID's:
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Pinnacle PCTV Sat: 94
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Nebula Electronics Digi TV: 104
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pcHDTV HD-2000 TV: 112
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Twinhan DST and clones: 113
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Avermedia AverTV DVB-T 771: 123
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Avermedia AverTV DVB-T 761: 124
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DViCO FusionHDTV DVB-T Lite: 128
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DViCO FusionHDTV 5 Lite: 135
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Notice: The order of the card ID should be uprising:
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Example:
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$ modprobe bttv card=113 card=135
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For a full list of card ID's please see Documentation/video4linux/CARDLIST.bttv.
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In case of further problems please subscribe and send questions to the mailing list: linux-dvb@linuxtv.org.
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2c) Probing the cards with broken PCI subsystem ID
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--------------------------------------------------
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There are some TwinHan cards that the EEPROM has become corrupted for some
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reason. The cards do not have correct PCI subsystem ID. But we can force
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probing the cards with broken PCI subsystem ID
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$ echo 109e 0878 $subvendor $subdevice > \
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/sys/bus/pci/drivers/bt878/new_id
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109e: PCI_VENDOR_ID_BROOKTREE
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0878: PCI_DEVICE_ID_BROOKTREE_878
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Authors: Richard Walker,
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Jamie Honan,
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Michael Hunold,
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Manu Abraham,
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Uwe Bugla,
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Michael Krufky
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