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Diffstat (limited to 'Documentation/video4linux/bttv/Insmod-options')
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diff --git a/Documentation/video4linux/bttv/Insmod-options b/Documentation/video4linux/bttv/Insmod-options new file mode 100644 index 0000000..7bb5a50b --- /dev/null +++ b/Documentation/video4linux/bttv/Insmod-options @@ -0,0 +1,173 @@ + +Note: "modinfo <module>" prints various informations about a kernel +module, among them a complete and up-to-date list of insmod options. +This list tends to be outdated because it is updated manually ... + +========================================================================== + +bttv.o + the bt848/878 (grabber chip) driver + + insmod args: + card=n card type, see CARDLIST for a list. + tuner=n tuner type, see CARDLIST for a list. + 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 + vsfx=0/1 yet another chipset bug compatibility bit + see README.quirks for details on these two. + + 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) + no_overlay=0 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=0/1 + gpiomask= + audioall= + audiomux= + See Sound-FAQ for a detailed description. + + remap, card, radio and pll accept up to four comma-separated arguments + (for multiple boards). + +tuner.o + The tuner driver. You need this unless you want to use only + with a camera or external tuner ... + + insmod args: + debug=1 print some debug info to the syslog + type=n type of the tuner chip. n as follows: + see CARDLIST for a complete list. + 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). + + insmod args: + 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*). + + insmod args: + tda8425 = 1 enable/disable the support for the + tda9840 = 1 various chips. + tda9850 = 1 The tea6300 can't be autodetected and is + tda9855 = 1 therefore off by default, if you have + tda9873 = 1 this one on your card (STB uses these) + tda9874a = 1 you have to enable it explicitly. + tea6300 = 0 The two tda985x chips use the same i2c + tea6420 = 1 address and can't be disturgished from + pic16c54 = 1 each other, you might have to disable + the wrong one. + debug = 1 print debug messages + + insmod args for tda9874a: + tda9874a_SIF=1/2 select sound IF input pin (1 or 2) + (default is pin 1) + tda9874a_AMSEL=0/1 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 + + 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 + +msp3400.o + The driver for the msp34xx sound processor chips. If you have a + stereo card, you probably want to insmod this one. + + insmod args: + 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... + +tea6300.o - OBSOLETE (use tvaudio instead) + The driver for the tea6300 fader chip. If you have a stereo + card and the msp3400.o doesn't work, you might want to try this + one. This chip is seen on most STB TV/FM cards (usually from + Gateway OEM sold surplus on auction sites). + + insmod args: + debug=1 print some debug info to the syslog. + +tda8425.o - OBSOLETE (use tvaudio instead) + The driver for the tda8425 fader chip. This driver used to be + part of bttv.c, so if your sound used to work but does not + anymore, try loading this module. + + insmod args: + debug=1 print some debug info to the syslog. + +tda985x.o - OBSOLETE (use tvaudio instead) + The driver for the tda9850/55 audio chips. + + insmod args: + debug=1 print some debug info to the syslog. + chip=9850/9855 set the chip type. |
