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-rw-r--r--Documentation/dvb/bt8xx.txt32
1 files changed, 20 insertions, 12 deletions
diff --git a/Documentation/dvb/bt8xx.txt b/Documentation/dvb/bt8xx.txt
index 4e7614e606c5..ecb47adda063 100644
--- a/Documentation/dvb/bt8xx.txt
+++ b/Documentation/dvb/bt8xx.txt
@@ -9,19 +9,29 @@ for accessing the i2c bus and the gpio pins of the bt8xx chipset.
9Please see Documentation/dvb/cards.txt => o Cards based on the Conexant Bt8xx PCI bridge: 9Please see Documentation/dvb/cards.txt => o Cards based on the Conexant Bt8xx PCI bridge:
10 10
11Compiling kernel please enable: 11Compiling kernel please enable:
12a.)"Device drivers" => "Multimedia devices" => "Video For Linux" => "BT848 Video For Linux" 12a.)"Device drivers" => "Multimedia devices" => "Video For Linux" => "Enable Video for Linux API 1 (DEPRECATED)"
13b.)"Device drivers" => "Multimedia devices" => "Digital Video Broadcasting Devices" 13b.)"Device drivers" => "Multimedia devices" => "Video For Linux" => "Video Capture Adapters" => "BT848 Video For Linux"
14 => "DVB for Linux" "DVB Core Support" "Bt8xx based PCI Cards" 14c.)"Device drivers" => "Multimedia devices" => "Digital Video Broadcasting Devices" => "DVB for Linux" "DVB Core Support" "Bt8xx based PCI Cards"
15 15
162) Loading Modules 16Please use the following options with care as deselection of drivers which are in fact necessary
17================== 17may result in DVB devices that cannot be tuned due to lack of driver support:
18You can save RAM by deselecting every frontend module that your DVB card does not need.
19
20First please remove the static dependency of DVB card drivers on all frontend modules for all possible card variants by enabling:
21d.) "Device drivers" => "Multimedia devices" => "Digital Video Broadcasting Devices"
22 => "DVB for Linux" "DVB Core Support" "Load and attach frontend modules as needed"
18 23
19In default cases bttv is loaded automatically. 24If you know the frontend driver that your card needs please enable:
20To load the backend either place dvb-bt8xx in etc/modules, or apply manually: 25e.)"Device drivers" => "Multimedia devices" => "Digital Video Broadcasting Devices"
26 => "DVB for Linux" "DVB Core Support" "Customise DVB Frontends" => "Customise the frontend modules to build"
27 Then please select your card-specific frontend module.
21 28
22 $ modprobe dvb-bt8xx 292) Loading Modules
30==================
23 31
24All frontends will be loaded automatically. 32Regular case: If the bttv driver detects a bt8xx-based DVB card, all frontend and backend modules will be loaded automatically.
33Exceptions are:
34- Old TwinHan DST cards or clones with or without CA slot and not containing an Eeprom.
25People running udev please see Documentation/dvb/udev.txt. 35People running udev please see Documentation/dvb/udev.txt.
26 36
27In the following cases overriding the PCI type detection for dvb-bt8xx might be necessary: 37In the following cases overriding the PCI type detection for dvb-bt8xx might be necessary:
@@ -30,7 +40,6 @@ In the following cases overriding the PCI type detection for dvb-bt8xx might be
30------------------------------ 40------------------------------
31 41
32 $ modprobe bttv card=113 42 $ modprobe bttv card=113
33 $ modprobe dvb-bt8xx
34 $ modprobe dst 43 $ modprobe dst
35 44
36Useful parameters for verbosity level and debugging the dst module: 45Useful parameters for verbosity level and debugging the dst module:
@@ -65,10 +74,9 @@ DViCO FusionHDTV 5 Lite: 135
65Notice: The order of the card ID should be uprising: 74Notice: The order of the card ID should be uprising:
66Example: 75Example:
67 $ modprobe bttv card=113 card=135 76 $ modprobe bttv card=113 card=135
68 $ modprobe dvb-bt8xx
69 77
70For a full list of card ID's please see Documentation/video4linux/CARDLIST.bttv. 78For a full list of card ID's please see Documentation/video4linux/CARDLIST.bttv.
71In case of further problems send questions to the mailing list: www.linuxdvb.org. 79In case of further problems please subscribe and send questions to the mailing list: linux-dvb@linuxtv.org.
72 80
73Authors: Richard Walker, 81Authors: Richard Walker,
74 Jamie Honan, 82 Jamie Honan,