BTTV parameters:

bttv.o : the bt848/878 (grabber chip) driver

card=n card type
tuner=n tuner type
radio=0/1 card supports radio
pll=0/1/2 pll settings
            0: don't use PLL
            1: 28 MHz crystal installed
            2: 35 MHz crystal installed
triton1=0/1 for Triton1 (+others) compatibility.
The triton1 insmod option sets the EN_TBFX bit in the control register.
The vsfx insmod option does the same for EN_VSFX bit. If you have
stability problems you can try if one of these options makes your box
work solid.
vsfx=0/1 yet another chipset bug compatibility bit
The triton1 insmod option sets the EN_TBFX bit in the control register.
The vsfx insmod option does the same for EN_VSFX bit. If you have
stability problems you can try if one of these options makes your box
work solid.
bigendian=n Set the endianness of the gfx framebuffer. Default is native endian.
fieldnr=0/1 Count fields.  Some TV descrambling software needs this, for others it only generates 50 useless IRQs/sec.  default is 0 (off).
autoload=0/1 autoload helper modules (tuner, audio). default is 1 (on).
bttv_verbose=0/1/2 verbose level (at insmod time, while looking at the hardware).  default is 1.
bttv_debug=0/1 debug messages (for capture). default is 0 (off).
irq_debug=0/1 irq handler debug messages. default is 0 (off).
gbuffers=2-32 number of capture buffers for mmap'ed capture. default is 4.
gbufsize= size of capture buffers. default and maximum value is 0x208000 (~2MB)
Enable overlay on broken hardware.  There are some chipsets (SIS for example) which are known to have problems with the PCI DMA push used by bttv.  bttv will disable overlay by default on this hardware to avoid crashes. With this insmod option you can override this.
automute=0/1 Automatically mutes the sound if there is no TV signal, on by default.  You might try to disable this if you have bad input signal quality which leading to unwanted sound dropouts.
chroma_agc=0/1 AGC of chroma signal, off by default.
adc_crush=0/1 Luminance ADC crush, on by default.
bttv_gpio=0/                             enable/disable gpio debug messages
gpiomask=n                             set the gpiomask value
audiomux=i,j,...                        set the values of the audiomux array
audioall=a                                set the values of the audiomux array (one value for all array elements, useful to check out which effect the particular value has).

tuner.o: The tuner driver.  You need this unless you want to use only with a camera or external tuner

debug=1 print some debug info to the syslog
type=n type of the tuner chip
pal=[bdgil] select PAL variant (used for some tuners only, important for the audio carrier).

tvmixer.o: registers a mixer device for the TV card's volume/bass/treble controls (requires a i2c audio control chip like the msp3400).

debug=1 print some debug info to the syslog.
devnr=n allocate device #n (0 == /dev/mixer, 1 = /dev/mixer1, ...), default is to use the first free one.

tvaudio.o:  new, experimental module which is supported to provide a single driver for all simple i2c audio control chips (tda/tea*).

enable/disable the support for the various chips. The tea6300 can't be autodetected and is therefore off by default, if you have this one on your card (STB uses these) you have to enable it explicitly. The two tda985x chips use the same i2c
address and can't be disturgished from each other, you might have to disable the wrong one.

Note 1: tda9874a supports both tda9874h (old) and tda9874a (new) chips.
Note 2: tda9874h/a and tda9875 (which is supported separately by tda9875.o) use the same i2c address so both modules should not be used at the same time.
Note 3: Using tda9874a_AMSEL option depends on your TV card design!
        AMSEL=0: auto-mute will switch between NICAM sound and the sound on 1st carrier (i.e. FM mono or AM).
        AMSEL=1: auto-mute will switch between NICAM sound and the analog mono input (MONOIN pin).
        If tda9874a decoder on your card has MONOIN pin not connected, then use only tda9874_AMSEL=0 or don't specify this option at all.
    For example:
      card=65 (FlyVideo 2000S) - set AMSEL=1 or AMSEL=0
      card=72 (Prolink PV-BT878P rev.9B) - set AMSEL=0 only
debug = 1 print debug messages
tda9874a_SIF=1/2 select sound IF input pin (1 or 2) (default is pin 1)
auto-mute select for NICAM (default=0) Please read note 3 below!
tda9874a_STD=n select TV sound standard (0..8):
                    0 - A2, B/G
                    1 - A2, M (Korea)
                    2 - A2, D/K (1)
                    3 - A2, D/K (2)
                    4 - A2, D/K (3)
                    5 - NICAM, I
                    6 - NICAM, B/G
                    7 - NICAM, D/K (default)
                    8 - NICAM, L

msp3400.o: The driver for the msp34xx sound processor chips. If you have a stereo card, you probably want to insmod this one.

debug=1/2 print some debug info to the syslog, 2 is more verbose.
simple=1 Use the "short programming" method.  Newer msp34xx versions support this.  You need this for dbx stereo.  Default is on if supported by the chip.
once=1 Don't check the TV-stations Audio mode every few seconds, but only once after channel switches.
amsound=1 Audio carrier is AM/NICAM at 6.5 Mhz.  This should improve things for french people, the carrier autoscan seems to work with FM only...


Copyright (c) 2002 Keuleu - Pingus - BlindMan
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.1
or any later version published by the Free Software Foundation;
with the Invariant Sections being LIST THEIR TITLES, with the
Front-Cover Texts being LIST, and with the Back-Cover Texts being LIST.
A copy of the license is included in the section entitled "GNU
Free Documentation License".