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review.evervolv.com / android_kernel_oneplus_msm8996 / ada70d9425bcc5e376fef8591e4e76e204c0834c / . / Documentation / video4linux / bttv / Insmod-options
blob: 7bb5a50b07796f365007d86702e0bc0a56e7368b [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1
2Note: "modinfo <module>" prints various informations 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4This list tends to be outdated because it is updated manually ...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 automute=0/1 Automatically mutes the sound if there is
48 no TV signal, on by default. You might try
49 to disable this if you have bad input signal
50 quality which leading to unwanted sound
51 dropouts.
52 chroma_agc=0/1 AGC of chroma signal, off by default.
53 adc_crush=0/1 Luminance ADC crush, on by default.
54
55 bttv_gpio=0/1
56 gpiomask=
57 audioall=
58 audiomux=
59 See Sound-FAQ for a detailed description.
60
61 remap, card, radio and pll accept up to four comma-separated arguments
62 (for multiple boards).
63
64tuner.o
65 The tuner driver. You need this unless you want to use only
66 with a camera or external tuner ...
67
68 insmod args:
69 debug=1 print some debug info to the syslog
70 type=n type of the tuner chip. n as follows:
71 see CARDLIST for a complete list.
72 pal=[bdgil] select PAL variant (used for some tuners
73 only, important for the audio carrier).
74
75tvmixer.o
76 registers a mixer device for the TV card's volume/bass/treble
77 controls (requires a i2c audio control chip like the msp3400).
78
79 insmod args:
80 debug=1 print some debug info to the syslog.
81 devnr=n allocate device #n (0 == /dev/mixer,
82 1 = /dev/mixer1, ...), default is to
83 use the first free one.
84
85tvaudio.o
86 new, experimental module which is supported to provide a single
87 driver for all simple i2c audio control chips (tda/tea*).
88
89 insmod args:
90 tda8425 = 1 enable/disable the support for the
91 tda9840 = 1 various chips.
92 tda9850 = 1 The tea6300 can't be autodetected and is
93 tda9855 = 1 therefore off by default, if you have
94 tda9873 = 1 this one on your card (STB uses these)
95 tda9874a = 1 you have to enable it explicitly.
96 tea6300 = 0 The two tda985x chips use the same i2c
97 tea6420 = 1 address and can't be disturgished from
98 pic16c54 = 1 each other, you might have to disable
99 the wrong one.
100 debug = 1 print debug messages
101
102 insmod args for tda9874a:
103 tda9874a_SIF=1/2 select sound IF input pin (1 or 2)
104 (default is pin 1)
105 tda9874a_AMSEL=0/1 auto-mute select for NICAM (default=0)
106 Please read note 3 below!
107 tda9874a_STD=n select TV sound standard (0..8):
108 0 - A2, B/G
109 1 - A2, M (Korea)
110 2 - A2, D/K (1)
111 3 - A2, D/K (2)
112 4 - A2, D/K (3)
113 5 - NICAM, I
114 6 - NICAM, B/G
115 7 - NICAM, D/K (default)
116 8 - NICAM, L
117
118 Note 1: tda9874a supports both tda9874h (old) and tda9874a (new) chips.
119 Note 2: tda9874h/a and tda9875 (which is supported separately by
120 tda9875.o) use the same i2c address so both modules should not be
121 used at the same time.
122 Note 3: Using tda9874a_AMSEL option depends on your TV card design!
123 AMSEL=0: auto-mute will switch between NICAM sound
124 and the sound on 1st carrier (i.e. FM mono or AM).
125 AMSEL=1: auto-mute will switch between NICAM sound
126 and the analog mono input (MONOIN pin).
127 If tda9874a decoder on your card has MONOIN pin not connected, then
128 use only tda9874_AMSEL=0 or don't specify this option at all.
129 For example:
130 card=65 (FlyVideo 2000S) - set AMSEL=1 or AMSEL=0
131 card=72 (Prolink PV-BT878P rev.9B) - set AMSEL=0 only
132
133msp3400.o
134 The driver for the msp34xx sound processor chips. If you have a
135 stereo card, you probably want to insmod this one.
136
137 insmod args:
138 debug=1/2 print some debug info to the syslog,
139 2 is more verbose.
140 simple=1 Use the "short programming" method. Newer
141 msp34xx versions support this. You need this
142 for dbx stereo. Default is on if supported by
143 the chip.
144 once=1 Don't check the TV-stations Audio mode
145 every few seconds, but only once after
146 channel switches.
147 amsound=1 Audio carrier is AM/NICAM at 6.5 Mhz. This
148 should improve things for french people, the
149 carrier autoscan seems to work with FM only...
150
151tea6300.o - OBSOLETE (use tvaudio instead)
152 The driver for the tea6300 fader chip. If you have a stereo
153 card and the msp3400.o doesn't work, you might want to try this
154 one. This chip is seen on most STB TV/FM cards (usually from
155 Gateway OEM sold surplus on auction sites).
156
157 insmod args:
158 debug=1 print some debug info to the syslog.
159
160tda8425.o - OBSOLETE (use tvaudio instead)
161 The driver for the tda8425 fader chip. This driver used to be
162 part of bttv.c, so if your sound used to work but does not
163 anymore, try loading this module.
164
165 insmod args:
166 debug=1 print some debug info to the syslog.
167
168tda985x.o - OBSOLETE (use tvaudio instead)
169 The driver for the tda9850/55 audio chips.
170
171 insmod args:
172 debug=1 print some debug info to the syslog.
173 chip=9850/9855 set the chip type.