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gerrit.nordix.org / codeaurora / cp-linux / 8d8f6542b666daf5e87de156590e635c2c4da0c0 / . / Documentation / video4linux / bttv / Insmod-options
blob: 14c065fa23efb9ae8f1dbd656fdb6143f62191c9 [file] [log] [blame]
Kyle Swenson8d8f6542021-03-15 11:02:55 -0600[diff] [blame^]1
2Note: "modinfo <module>" prints various information about a kernel
3module, among them a complete and up-to-date list of insmod options.
4This list tends to be outdated because it is updated manually ...
5
6==========================================================================
7
8bttv.o
9 the bt848/878 (grabber chip) driver
10
11 insmod args:
12 card=n card type, see CARDLIST for a list.
13 tuner=n tuner type, see CARDLIST for a list.
14 radio=0/1 card supports radio
15 pll=0/1/2 pll settings
16 0: don't use PLL
17 1: 28 MHz crystal installed
18 2: 35 MHz crystal installed
19
20 triton1=0/1 for Triton1 (+others) compatibility
21 vsfx=0/1 yet another chipset bug compatibility bit
22 see README.quirks for details on these two.
23
24 bigendian=n Set the endianness of the gfx framebuffer.
25 Default is native endian.
26 fieldnr=0/1 Count fields. Some TV descrambling software
27 needs this, for others it only generates
28 50 useless IRQs/sec. default is 0 (off).
29 autoload=0/1 autoload helper modules (tuner, audio).
30 default is 1 (on).
31 bttv_verbose=0/1/2 verbose level (at insmod time, while
32 looking at the hardware). default is 1.
33 bttv_debug=0/1 debug messages (for capture).
34 default is 0 (off).
35 irq_debug=0/1 irq handler debug messages.
36 default is 0 (off).
37 gbuffers=2-32 number of capture buffers for mmap'ed capture.
38 default is 4.
39 gbufsize= size of capture buffers. default and
40 maximum value is 0x208000 (~2MB)
41 no_overlay=0 Enable overlay on broken hardware. There
42 are some chipsets (SIS for example) which
43 are known to have problems with the PCI DMA
44 push used by bttv. bttv will disable overlay
45 by default on this hardware to avoid crashes.
46 With this insmod option you can override this.
47 no_overlay=1 Disable overlay. It should be used by broken
48 hardware that doesn't support PCI2PCI direct
49 transfers.
50 automute=0/1 Automatically mutes the sound if there is
51 no TV signal, on by default. You might try
52 to disable this if you have bad input signal
53 quality which leading to unwanted sound
54 dropouts.
55 chroma_agc=0/1 AGC of chroma signal, off by default.
56 adc_crush=0/1 Luminance ADC crush, on by default.
57 i2c_udelay= Allow reduce I2C speed. Default is 5 usecs
58 (meaning 66,67 Kbps). The default is the
59 maximum supported speed by kernel bitbang
60 algorithm. You may use lower numbers, if I2C
61 messages are lost (16 is known to work on
62 all supported cards).
63
64 bttv_gpio=0/1
65 gpiomask=
66 audioall=
67 audiomux=
68 See Sound-FAQ for a detailed description.
69
70 remap, card, radio and pll accept up to four comma-separated arguments
71 (for multiple boards).
72
73tuner.o
74 The tuner driver. You need this unless you want to use only
75 with a camera or external tuner ...
76
77 insmod args:
78 debug=1 print some debug info to the syslog
79 type=n type of the tuner chip. n as follows:
80 see CARDLIST for a complete list.
81 pal=[bdgil] select PAL variant (used for some tuners
82 only, important for the audio carrier).
83
84tvaudio.o
85 new, experimental module which is supported to provide a single
86 driver for all simple i2c audio control chips (tda/tea*).
87
88 insmod args:
89 tda8425 = 1 enable/disable the support for the
90 tda9840 = 1 various chips.
91 tda9850 = 1 The tea6300 can't be autodetected and is
92 tda9855 = 1 therefore off by default, if you have
93 tda9873 = 1 this one on your card (STB uses these)
94 tda9874a = 1 you have to enable it explicitly.
95 tea6300 = 0 The two tda985x chips use the same i2c
96 tea6420 = 1 address and can't be disturgished from
97 pic16c54 = 1 each other, you might have to disable
98 the wrong one.
99 debug = 1 print debug messages
100
101 insmod args for tda9874a:
102 tda9874a_SIF=1/2 select sound IF input pin (1 or 2)
103 (default is pin 1)
104 tda9874a_AMSEL=0/1 auto-mute select for NICAM (default=0)
105 Please read note 3 below!
106 tda9874a_STD=n select TV sound standard (0..8):
107 0 - A2, B/G
108 1 - A2, M (Korea)
109 2 - A2, D/K (1)
110 3 - A2, D/K (2)
111 4 - A2, D/K (3)
112 5 - NICAM, I
113 6 - NICAM, B/G
114 7 - NICAM, D/K (default)
115 8 - NICAM, L
116
117 Note 1: tda9874a supports both tda9874h (old) and tda9874a (new) chips.
118 Note 2: tda9874h/a and tda9875 (which is supported separately by
119 tda9875.o) use the same i2c address so both modules should not be
120 used at the same time.
121 Note 3: Using tda9874a_AMSEL option depends on your TV card design!
122 AMSEL=0: auto-mute will switch between NICAM sound
123 and the sound on 1st carrier (i.e. FM mono or AM).
124 AMSEL=1: auto-mute will switch between NICAM sound
125 and the analog mono input (MONOIN pin).
126 If tda9874a decoder on your card has MONOIN pin not connected, then
127 use only tda9874_AMSEL=0 or don't specify this option at all.
128 For example:
129 card=65 (FlyVideo 2000S) - set AMSEL=1 or AMSEL=0
130 card=72 (Prolink PV-BT878P rev.9B) - set AMSEL=0 only
131
132msp3400.o
133 The driver for the msp34xx sound processor chips. If you have a
134 stereo card, you probably want to insmod this one.
135
136 insmod args:
137 debug=1/2 print some debug info to the syslog,
138 2 is more verbose.
139 simple=1 Use the "short programming" method. Newer
140 msp34xx versions support this. You need this
141 for dbx stereo. Default is on if supported by
142 the chip.
143 once=1 Don't check the TV-stations Audio mode
144 every few seconds, but only once after
145 channel switches.
146 amsound=1 Audio carrier is AM/NICAM at 6.5 Mhz. This
147 should improve things for french people, the
148 carrier autoscan seems to work with FM only...
149
150tea6300.o - OBSOLETE (use tvaudio instead)
151 The driver for the tea6300 fader chip. If you have a stereo
152 card and the msp3400.o doesn't work, you might want to try this
153 one. This chip is seen on most STB TV/FM cards (usually from
154 Gateway OEM sold surplus on auction sites).
155
156 insmod args:
157 debug=1 print some debug info to the syslog.
158
159tda8425.o - OBSOLETE (use tvaudio instead)
160 The driver for the tda8425 fader chip. This driver used to be
161 part of bttv.c, so if your sound used to work but does not
162 anymore, try loading this module.
163
164 insmod args:
165 debug=1 print some debug info to the syslog.
166
167tda985x.o - OBSOLETE (use tvaudio instead)
168 The driver for the tda9850/55 audio chips.
169
170 insmod args:
171 debug=1 print some debug info to the syslog.
172 chip=9850/9855 set the chip type.