[PATCH] fix for Documentation/dvb/bt8xx.txt?=

How to get the Nebula, PCTV and Twinhan DST cards working

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How to get the Nebula Electronics DigiTV, Pinnacle PCTV Sat, Twinhan DST + clones working

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This class of cards has a bt878a as the PCI interface, and

require the bttv driver.

1) General information

======================

Please pay close attention to the warning about the bttv module

options below for the DST card.

This class of cards has a bt878a chip as the PCI interface.

The different card drivers require the bttv driver to provide the means

to access the i2c bus and the gpio pins of the bt8xx chipset.

1) General informations

=======================

2) Compilation rules for Kernel >= 2.6.12

=========================================

These drivers require the bttv driver to provide the means to access

the i2c bus and the gpio pins of the bt8xx chipset.

Enable the following options:

Because of this, you need to enable

"Device drivers" => "Multimedia devices"

 => "Video For Linux" => "BT848 Video For Linux"

Furthermore you need to enable

"Device drivers" => "Multimedia devices" => "Digital Video Broadcasting Devices"

 => "DVB for Linux" "DVB Core Support" "Nebula/Pinnacle PCTV/TwinHan PCI Cards"

2) Loading Modules

==================

3) Loading Modules, described by two approaches

===============================================

In general you need to load the bttv driver, which will handle the gpio and

i2c communication for us, plus the common dvb-bt8xx device driver.

The frontends for Nebula (nxt6000), Pinnacle PCTV (cx24110) and

TwinHan (dst) are loaded automatically by the dvb-bt8xx device driver.

i2c communication for us, plus the common dvb-bt8xx device driver,

which is called the backend.

The frontends for Nebula DigiTV (nxt6000), Pinnacle PCTV Sat (cx24110),

TwinHan DST + clones (dst and dst-ca) are loaded automatically by the backend.

For further details about TwinHan DST + clones see /Documentation/dvb/ci.txt.

3a) Nebula / Pinnacle PCTV

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3a) The manual approach

-----------------------

   $ modprobe bttv (normally bttv is being loaded automatically by kmod)

   $ modprobe dvb-bt8xx (or just place dvb-bt8xx in /etc/modules for automatic loading)

Loading modules:

modprobe bttv

modprobe dvb-bt8xx

Unloading modules:

modprobe -r dvb-bt8xx

modprobe -r bttv

3b) TwinHan and Clones

3b) The automatic approach

--------------------------

   $ modprobe bttv i2c_hw=1 card=0x71

   $ modprobe dvb-bt8xx

   $ modprobe dst

The value 0x71 will override the PCI type detection for dvb-bt8xx,

which is necessary for TwinHan cards.

If you're having an older card (blue color circuit) and card=0x71 locks

your machine, try using 0x68, too. If that does not work, ask on the

mailing list.

The DST module takes a couple of useful parameters:

If not already done by installation, place a line either in

/etc/modules.conf or in /etc/modprobe.conf containing this text:

alias char-major-81	bttv

a. verbose takes values 0 to 5. These values control the verbosity level.

b. debug takes values 0 and 1. You can either disable or enable debugging.

c. dst_addons takes values 0 and 0x20:

- A value of 0 means it is a FTA card.

- A value of 0x20 means it has a Conditional Access slot.

Then place a line in /etc/modules containing this text:

dvb-bt8xx

The autodetected values are determined by the "response string"

of the card, which you can see in your logs:

e.g.: dst_get_device_id: Recognize [DSTMCI]

Reboot your system and have fun!

--

Authors: Richard Walker, Jamie Honan, Michael Hunold, Manu Abraham, Uwe Bugla