diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-15 12:22:18 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-15 12:22:18 -0400 |
commit | 043fe50f8085c12651c96f04576eae4d8a22f3d8 (patch) | |
tree | 214b4f985ce7d3b1a4961620e2c2f4f5f06e1c35 /Documentation | |
parent | 227423904c709a8e60245c97081bbeb4fb500655 (diff) | |
parent | ea47689e74a1637fac4f5fc44890f3662c976849 (diff) |
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (213 commits)
V4L/DVB (12720): em28xx-cards: Add vendor/product id for Kworld DVD Maker 2
V4L/DVB (12713): em28xx: Cleanups at ir_i2c handler
V4L/DVB (12712): em28xx: properly load ir-kbd-i2c when needed
V4L/DVB (12701): saa7134: ir-kbd-i2c init data needs a persistent object
V4L/DVB (12699): cx18: ir-kbd-i2c initialization data should point to a persistent object
V4L/DVB (12698): em28xx: ir-kbd-i2c init data needs a persistent object
V4L/DVB (12707): gspca - sn9c20x: Add SXGA support to MT9M111
V4L/DVB (12706): gspca - sn9c20x: disable exposure/gain controls for MT9M111 sensors.
V4L/DVB (12705): gspca - sn9c20x: Add SXGA support to SOI968
V4L/DVB (12703): gspca - sn9c20x: Reduces size of object
V4L/DVB (12704): gspca - sn9c20x: Fix exposure on SOI968 sensors
V4L/DVB (12696): gspca - sonixj / sn9c102: Two drivers for 0c45:60fc and 0c45:613e.
V4L/DVB (12695): gspca - vc032x: Do the LED work with the sensor hv7131r.
V4L/DVB (12694): gspca - vc032x: Change the start exchanges of the sensor hv7131r.
V4L/DVB (12693): gspca - sunplus: The brightness is signed.
V4L/DVB (12692): gspca - sunplus: Optimize code.
V4L/DVB (12691): gspca - sonixj: Don't use mdelay().
V4L/DVB (12690): gspca - pac7311: Webcam 06f8:3009 added.
V4L/DVB (12686): dvb-core: check supported QAM modulations
V4L/DVB (12685): dvb-core: check fe->ops.set_frontend return value
...
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/video4linux/CARDLIST.cx23885 | 2 | ||||
-rw-r--r-- | Documentation/video4linux/CARDLIST.cx88 | 1 | ||||
-rw-r--r-- | Documentation/video4linux/CARDLIST.em28xx | 5 | ||||
-rw-r--r-- | Documentation/video4linux/CARDLIST.saa7134 | 4 | ||||
-rw-r--r-- | Documentation/video4linux/CARDLIST.tuner | 1 | ||||
-rw-r--r-- | Documentation/video4linux/CQcam.txt | 4 | ||||
-rw-r--r-- | Documentation/video4linux/gspca.txt | 6 | ||||
-rw-r--r-- | Documentation/video4linux/si4713.txt | 176 |
8 files changed, 195 insertions, 4 deletions
diff --git a/Documentation/video4linux/CARDLIST.cx23885 b/Documentation/video4linux/CARDLIST.cx23885 index 450b8f8c389b..525edb37c758 100644 --- a/Documentation/video4linux/CARDLIST.cx23885 +++ b/Documentation/video4linux/CARDLIST.cx23885 | |||
@@ -21,3 +21,5 @@ | |||
21 | 20 -> Hauppauge WinTV-HVR1255 [0070:2251] | 21 | 20 -> Hauppauge WinTV-HVR1255 [0070:2251] |
22 | 21 -> Hauppauge WinTV-HVR1210 [0070:2291,0070:2295] | 22 | 21 -> Hauppauge WinTV-HVR1210 [0070:2291,0070:2295] |
23 | 22 -> Mygica X8506 DMB-TH [14f1:8651] | 23 | 22 -> Mygica X8506 DMB-TH [14f1:8651] |
24 | 23 -> Magic-Pro ProHDTV Extreme 2 [14f1:8657] | ||
25 | 24 -> Hauppauge WinTV-HVR1850 [0070:8541] | ||
diff --git a/Documentation/video4linux/CARDLIST.cx88 b/Documentation/video4linux/CARDLIST.cx88 index 0736518b2f88..3385f8b094a5 100644 --- a/Documentation/video4linux/CARDLIST.cx88 +++ b/Documentation/video4linux/CARDLIST.cx88 | |||
@@ -80,3 +80,4 @@ | |||
80 | 79 -> Terratec Cinergy HT PCI MKII [153b:1177] | 80 | 79 -> Terratec Cinergy HT PCI MKII [153b:1177] |
81 | 80 -> Hauppauge WinTV-IR Only [0070:9290] | 81 | 80 -> Hauppauge WinTV-IR Only [0070:9290] |
82 | 81 -> Leadtek WinFast DTV1800 Hybrid [107d:6654] | 82 | 81 -> Leadtek WinFast DTV1800 Hybrid [107d:6654] |
83 | 82 -> WinFast DTV2000 H rev. J [107d:6f2b] | ||
diff --git a/Documentation/video4linux/CARDLIST.em28xx b/Documentation/video4linux/CARDLIST.em28xx index e352d754875c..b13fcbd5d94b 100644 --- a/Documentation/video4linux/CARDLIST.em28xx +++ b/Documentation/video4linux/CARDLIST.em28xx | |||
@@ -7,7 +7,7 @@ | |||
7 | 6 -> Terratec Cinergy 200 USB (em2800) | 7 | 6 -> Terratec Cinergy 200 USB (em2800) |
8 | 7 -> Leadtek Winfast USB II (em2800) [0413:6023] | 8 | 7 -> Leadtek Winfast USB II (em2800) [0413:6023] |
9 | 8 -> Kworld USB2800 (em2800) | 9 | 8 -> Kworld USB2800 (em2800) |
10 | 9 -> Pinnacle Dazzle DVC 90/100/101/107 / Kaiser Baas Video to DVD maker (em2820/em2840) [1b80:e302,2304:0207,2304:021a] | 10 | 9 -> Pinnacle Dazzle DVC 90/100/101/107 / Kaiser Baas Video to DVD maker (em2820/em2840) [1b80:e302,1b80:e304,2304:0207,2304:021a] |
11 | 10 -> Hauppauge WinTV HVR 900 (em2880) [2040:6500] | 11 | 10 -> Hauppauge WinTV HVR 900 (em2880) [2040:6500] |
12 | 11 -> Terratec Hybrid XS (em2880) [0ccd:0042] | 12 | 11 -> Terratec Hybrid XS (em2880) [0ccd:0042] |
13 | 12 -> Kworld PVR TV 2800 RF (em2820/em2840) | 13 | 12 -> Kworld PVR TV 2800 RF (em2820/em2840) |
@@ -33,7 +33,7 @@ | |||
33 | 34 -> Terratec Cinergy A Hybrid XS (em2860) [0ccd:004f] | 33 | 34 -> Terratec Cinergy A Hybrid XS (em2860) [0ccd:004f] |
34 | 35 -> Typhoon DVD Maker (em2860) | 34 | 35 -> Typhoon DVD Maker (em2860) |
35 | 36 -> NetGMBH Cam (em2860) | 35 | 36 -> NetGMBH Cam (em2860) |
36 | 37 -> Gadmei UTV330 (em2860) | 36 | 37 -> Gadmei UTV330 (em2860) [eb1a:50a6] |
37 | 38 -> Yakumo MovieMixer (em2861) | 37 | 38 -> Yakumo MovieMixer (em2861) |
38 | 39 -> KWorld PVRTV 300U (em2861) [eb1a:e300] | 38 | 39 -> KWorld PVRTV 300U (em2861) [eb1a:e300] |
39 | 40 -> Plextor ConvertX PX-TV100U (em2861) [093b:a005] | 39 | 40 -> Plextor ConvertX PX-TV100U (em2861) [093b:a005] |
@@ -67,3 +67,4 @@ | |||
67 | 69 -> KWorld ATSC 315U HDTV TV Box (em2882) [eb1a:a313] | 67 | 69 -> KWorld ATSC 315U HDTV TV Box (em2882) [eb1a:a313] |
68 | 70 -> Evga inDtube (em2882) | 68 | 70 -> Evga inDtube (em2882) |
69 | 71 -> Silvercrest Webcam 1.3mpix (em2820/em2840) | 69 | 71 -> Silvercrest Webcam 1.3mpix (em2820/em2840) |
70 | 72 -> Gadmei UTV330+ (em2861) | ||
diff --git a/Documentation/video4linux/CARDLIST.saa7134 b/Documentation/video4linux/CARDLIST.saa7134 index c913e5614195..0ac4d2544778 100644 --- a/Documentation/video4linux/CARDLIST.saa7134 +++ b/Documentation/video4linux/CARDLIST.saa7134 | |||
@@ -167,3 +167,7 @@ | |||
167 | 166 -> Beholder BeholdTV 607 RDS [5ace:6073] | 167 | 166 -> Beholder BeholdTV 607 RDS [5ace:6073] |
168 | 167 -> Beholder BeholdTV 609 RDS [5ace:6092] | 168 | 167 -> Beholder BeholdTV 609 RDS [5ace:6092] |
169 | 168 -> Beholder BeholdTV 609 RDS [5ace:6093] | 169 | 168 -> Beholder BeholdTV 609 RDS [5ace:6093] |
170 | 169 -> Compro VideoMate S350/S300 [185b:c900] | ||
171 | 170 -> AverMedia AverTV Studio 505 [1461:a115] | ||
172 | 171 -> Beholder BeholdTV X7 [5ace:7595] | ||
173 | 172 -> RoverMedia TV Link Pro FM [19d1:0138] | ||
diff --git a/Documentation/video4linux/CARDLIST.tuner b/Documentation/video4linux/CARDLIST.tuner index be67844074dd..ba9fa679e2d3 100644 --- a/Documentation/video4linux/CARDLIST.tuner +++ b/Documentation/video4linux/CARDLIST.tuner | |||
@@ -78,3 +78,4 @@ tuner=77 - TCL tuner MF02GIP-5N-E | |||
78 | tuner=78 - Philips FMD1216MEX MK3 Hybrid Tuner | 78 | tuner=78 - Philips FMD1216MEX MK3 Hybrid Tuner |
79 | tuner=79 - Philips PAL/SECAM multi (FM1216 MK5) | 79 | tuner=79 - Philips PAL/SECAM multi (FM1216 MK5) |
80 | tuner=80 - Philips FQ1216LME MK3 PAL/SECAM w/active loopthrough | 80 | tuner=80 - Philips FQ1216LME MK3 PAL/SECAM w/active loopthrough |
81 | tuner=81 - Partsnic (Daewoo) PTI-5NF05 | ||
diff --git a/Documentation/video4linux/CQcam.txt b/Documentation/video4linux/CQcam.txt index 04986efb731c..d230878e473e 100644 --- a/Documentation/video4linux/CQcam.txt +++ b/Documentation/video4linux/CQcam.txt | |||
@@ -18,8 +18,8 @@ Table of Contents | |||
18 | 18 | ||
19 | 1.0 Introduction | 19 | 1.0 Introduction |
20 | 20 | ||
21 | The file ../drivers/char/c-qcam.c is a device driver for the | 21 | The file ../../drivers/media/video/c-qcam.c is a device driver for |
22 | Logitech (nee Connectix) parallel port interface color CCD camera. | 22 | the Logitech (nee Connectix) parallel port interface color CCD camera. |
23 | This is a fairly inexpensive device for capturing images. Logitech | 23 | This is a fairly inexpensive device for capturing images. Logitech |
24 | does not currently provide information for developers, but many people | 24 | does not currently provide information for developers, but many people |
25 | have engineered several solutions for non-Microsoft use of the Color | 25 | have engineered several solutions for non-Microsoft use of the Color |
diff --git a/Documentation/video4linux/gspca.txt b/Documentation/video4linux/gspca.txt index 573f95b58807..4686e84dd800 100644 --- a/Documentation/video4linux/gspca.txt +++ b/Documentation/video4linux/gspca.txt | |||
@@ -140,6 +140,7 @@ spca500 04fc:7333 PalmPixDC85 | |||
140 | sunplus 04fc:ffff Pure DigitalDakota | 140 | sunplus 04fc:ffff Pure DigitalDakota |
141 | spca501 0506:00df 3Com HomeConnect Lite | 141 | spca501 0506:00df 3Com HomeConnect Lite |
142 | sunplus 052b:1513 Megapix V4 | 142 | sunplus 052b:1513 Megapix V4 |
143 | sunplus 052b:1803 MegaImage VI | ||
143 | tv8532 0545:808b Veo Stingray | 144 | tv8532 0545:808b Veo Stingray |
144 | tv8532 0545:8333 Veo Stingray | 145 | tv8532 0545:8333 Veo Stingray |
145 | sunplus 0546:3155 Polaroid PDC3070 | 146 | sunplus 0546:3155 Polaroid PDC3070 |
@@ -182,6 +183,7 @@ ov534 06f8:3002 Hercules Blog Webcam | |||
182 | ov534 06f8:3003 Hercules Dualpix HD Weblog | 183 | ov534 06f8:3003 Hercules Dualpix HD Weblog |
183 | sonixj 06f8:3004 Hercules Classic Silver | 184 | sonixj 06f8:3004 Hercules Classic Silver |
184 | sonixj 06f8:3008 Hercules Deluxe Optical Glass | 185 | sonixj 06f8:3008 Hercules Deluxe Optical Glass |
186 | pac7311 06f8:3009 Hercules Classic Link | ||
185 | spca508 0733:0110 ViewQuest VQ110 | 187 | spca508 0733:0110 ViewQuest VQ110 |
186 | spca508 0130:0130 Clone Digital Webcam 11043 | 188 | spca508 0130:0130 Clone Digital Webcam 11043 |
187 | spca501 0733:0401 Intel Create and Share | 189 | spca501 0733:0401 Intel Create and Share |
@@ -235,8 +237,10 @@ pac7311 093a:2621 PAC731x | |||
235 | pac7311 093a:2622 Genius Eye 312 | 237 | pac7311 093a:2622 Genius Eye 312 |
236 | pac7311 093a:2624 PAC7302 | 238 | pac7311 093a:2624 PAC7302 |
237 | pac7311 093a:2626 Labtec 2200 | 239 | pac7311 093a:2626 Labtec 2200 |
240 | pac7311 093a:2629 Genious iSlim 300 | ||
238 | pac7311 093a:262a Webcam 300k | 241 | pac7311 093a:262a Webcam 300k |
239 | pac7311 093a:262c Philips SPC 230 NC | 242 | pac7311 093a:262c Philips SPC 230 NC |
243 | jeilinj 0979:0280 Sakar 57379 | ||
240 | zc3xx 0ac8:0302 Z-star Vimicro zc0302 | 244 | zc3xx 0ac8:0302 Z-star Vimicro zc0302 |
241 | vc032x 0ac8:0321 Vimicro generic vc0321 | 245 | vc032x 0ac8:0321 Vimicro generic vc0321 |
242 | vc032x 0ac8:0323 Vimicro Vc0323 | 246 | vc032x 0ac8:0323 Vimicro Vc0323 |
@@ -247,6 +251,7 @@ zc3xx 0ac8:305b Z-star Vimicro zc0305b | |||
247 | zc3xx 0ac8:307b Ldlc VC302+Ov7620 | 251 | zc3xx 0ac8:307b Ldlc VC302+Ov7620 |
248 | vc032x 0ac8:c001 Sony embedded vimicro | 252 | vc032x 0ac8:c001 Sony embedded vimicro |
249 | vc032x 0ac8:c002 Sony embedded vimicro | 253 | vc032x 0ac8:c002 Sony embedded vimicro |
254 | vc032x 0ac8:c301 Samsung Q1 Ultra Premium | ||
250 | spca508 0af9:0010 Hama USB Sightcam 100 | 255 | spca508 0af9:0010 Hama USB Sightcam 100 |
251 | spca508 0af9:0011 Hama USB Sightcam 100 | 256 | spca508 0af9:0011 Hama USB Sightcam 100 |
252 | sonixb 0c45:6001 Genius VideoCAM NB | 257 | sonixb 0c45:6001 Genius VideoCAM NB |
@@ -284,6 +289,7 @@ sonixj 0c45:613a Microdia Sonix PC Camera | |||
284 | sonixj 0c45:613b Surfer SN-206 | 289 | sonixj 0c45:613b Surfer SN-206 |
285 | sonixj 0c45:613c Sonix Pccam168 | 290 | sonixj 0c45:613c Sonix Pccam168 |
286 | sonixj 0c45:6143 Sonix Pccam168 | 291 | sonixj 0c45:6143 Sonix Pccam168 |
292 | sonixj 0c45:6148 Digitus DA-70811/ZSMC USB PC Camera ZS211/Microdia | ||
287 | sn9c20x 0c45:6240 PC Camera (SN9C201 + MT9M001) | 293 | sn9c20x 0c45:6240 PC Camera (SN9C201 + MT9M001) |
288 | sn9c20x 0c45:6242 PC Camera (SN9C201 + MT9M111) | 294 | sn9c20x 0c45:6242 PC Camera (SN9C201 + MT9M111) |
289 | sn9c20x 0c45:6248 PC Camera (SN9C201 + OV9655) | 295 | sn9c20x 0c45:6248 PC Camera (SN9C201 + OV9655) |
diff --git a/Documentation/video4linux/si4713.txt b/Documentation/video4linux/si4713.txt new file mode 100644 index 000000000000..25abdb78209d --- /dev/null +++ b/Documentation/video4linux/si4713.txt | |||
@@ -0,0 +1,176 @@ | |||
1 | Driver for I2C radios for the Silicon Labs Si4713 FM Radio Transmitters | ||
2 | |||
3 | Copyright (c) 2009 Nokia Corporation | ||
4 | Contact: Eduardo Valentin <eduardo.valentin@nokia.com> | ||
5 | |||
6 | |||
7 | Information about the Device | ||
8 | ============================ | ||
9 | This chip is a Silicon Labs product. It is a I2C device, currently on 0x63 address. | ||
10 | Basically, it has transmission and signal noise level measurement features. | ||
11 | |||
12 | The Si4713 integrates transmit functions for FM broadcast stereo transmission. | ||
13 | The chip also allows integrated receive power scanning to identify low signal | ||
14 | power FM channels. | ||
15 | |||
16 | The chip is programmed using commands and responses. There are also several | ||
17 | properties which can change the behavior of this chip. | ||
18 | |||
19 | Users must comply with local regulations on radio frequency (RF) transmission. | ||
20 | |||
21 | Device driver description | ||
22 | ========================= | ||
23 | There are two modules to handle this device. One is a I2C device driver | ||
24 | and the other is a platform driver. | ||
25 | |||
26 | The I2C device driver exports a v4l2-subdev interface to the kernel. | ||
27 | All properties can also be accessed by v4l2 extended controls interface, by | ||
28 | using the v4l2-subdev calls (g_ext_ctrls, s_ext_ctrls). | ||
29 | |||
30 | The platform device driver exports a v4l2 radio device interface to user land. | ||
31 | So, it uses the I2C device driver as a sub device in order to send the user | ||
32 | commands to the actual device. Basically it is a wrapper to the I2C device driver. | ||
33 | |||
34 | Applications can use v4l2 radio API to specify frequency of operation, mute state, | ||
35 | etc. But mostly of its properties will be present in the extended controls. | ||
36 | |||
37 | When the v4l2 mute property is set to 1 (true), the driver will turn the chip off. | ||
38 | |||
39 | Properties description | ||
40 | ====================== | ||
41 | |||
42 | The properties can be accessed using v4l2 extended controls. | ||
43 | Here is an output from v4l2-ctl util: | ||
44 | / # v4l2-ctl -d /dev/radio0 --all -L | ||
45 | Driver Info: | ||
46 | Driver name : radio-si4713 | ||
47 | Card type : Silicon Labs Si4713 Modulator | ||
48 | Bus info : | ||
49 | Driver version: 0 | ||
50 | Capabilities : 0x00080800 | ||
51 | RDS Output | ||
52 | Modulator | ||
53 | Audio output: 0 (FM Modulator Audio Out) | ||
54 | Frequency: 1408000 (88.000000 MHz) | ||
55 | Video Standard = 0x00000000 | ||
56 | Modulator: | ||
57 | Name : FM Modulator | ||
58 | Capabilities : 62.5 Hz stereo rds | ||
59 | Frequency range : 76.0 MHz - 108.0 MHz | ||
60 | Subchannel modulation: stereo+rds | ||
61 | |||
62 | User Controls | ||
63 | |||
64 | mute (bool) : default=1 value=0 | ||
65 | |||
66 | FM Radio Modulator Controls | ||
67 | |||
68 | rds_signal_deviation (int) : min=0 max=90000 step=10 default=200 value=200 flags=slider | ||
69 | rds_program_id (int) : min=0 max=65535 step=1 default=0 value=0 | ||
70 | rds_program_type (int) : min=0 max=31 step=1 default=0 value=0 | ||
71 | rds_ps_name (str) : min=0 max=96 step=8 value='si4713 ' | ||
72 | rds_radio_text (str) : min=0 max=384 step=32 value='' | ||
73 | audio_limiter_feature_enabled (bool) : default=1 value=1 | ||
74 | audio_limiter_release_time (int) : min=250 max=102390 step=50 default=5010 value=5010 flags=slider | ||
75 | audio_limiter_deviation (int) : min=0 max=90000 step=10 default=66250 value=66250 flags=slider | ||
76 | audio_compression_feature_enabl (bool) : default=1 value=1 | ||
77 | audio_compression_gain (int) : min=0 max=20 step=1 default=15 value=15 flags=slider | ||
78 | audio_compression_threshold (int) : min=-40 max=0 step=1 default=-40 value=-40 flags=slider | ||
79 | audio_compression_attack_time (int) : min=0 max=5000 step=500 default=0 value=0 flags=slider | ||
80 | audio_compression_release_time (int) : min=100000 max=1000000 step=100000 default=1000000 value=1000000 flags=slider | ||
81 | pilot_tone_feature_enabled (bool) : default=1 value=1 | ||
82 | pilot_tone_deviation (int) : min=0 max=90000 step=10 default=6750 value=6750 flags=slider | ||
83 | pilot_tone_frequency (int) : min=0 max=19000 step=1 default=19000 value=19000 flags=slider | ||
84 | pre_emphasis_settings (menu) : min=0 max=2 default=1 value=1 | ||
85 | tune_power_level (int) : min=0 max=120 step=1 default=88 value=88 flags=slider | ||
86 | tune_antenna_capacitor (int) : min=0 max=191 step=1 default=0 value=110 flags=slider | ||
87 | / # | ||
88 | |||
89 | Here is a summary of them: | ||
90 | |||
91 | * Pilot is an audible tone sent by the device. | ||
92 | |||
93 | pilot_frequency - Configures the frequency of the stereo pilot tone. | ||
94 | pilot_deviation - Configures pilot tone frequency deviation level. | ||
95 | pilot_enabled - Enables or disables the pilot tone feature. | ||
96 | |||
97 | * The si4713 device is capable of applying audio compression to the transmitted signal. | ||
98 | |||
99 | acomp_enabled - Enables or disables the audio dynamic range control feature. | ||
100 | acomp_gain - Sets the gain for audio dynamic range control. | ||
101 | acomp_threshold - Sets the threshold level for audio dynamic range control. | ||
102 | acomp_attack_time - Sets the attack time for audio dynamic range control. | ||
103 | acomp_release_time - Sets the release time for audio dynamic range control. | ||
104 | |||
105 | * Limiter setups audio deviation limiter feature. Once a over deviation occurs, | ||
106 | it is possible to adjust the front-end gain of the audio input and always | ||
107 | prevent over deviation. | ||
108 | |||
109 | limiter_enabled - Enables or disables the limiter feature. | ||
110 | limiter_deviation - Configures audio frequency deviation level. | ||
111 | limiter_release_time - Sets the limiter release time. | ||
112 | |||
113 | * Tuning power | ||
114 | |||
115 | power_level - Sets the output power level for signal transmission. | ||
116 | antenna_capacitor - This selects the value of antenna tuning capacitor manually | ||
117 | or automatically if set to zero. | ||
118 | |||
119 | * RDS related | ||
120 | |||
121 | rds_ps_name - Sets the RDS ps name field for transmission. | ||
122 | rds_radio_text - Sets the RDS radio text for transmission. | ||
123 | rds_pi - Sets the RDS PI field for transmission. | ||
124 | rds_pty - Sets the RDS PTY field for transmission. | ||
125 | |||
126 | * Region related | ||
127 | |||
128 | preemphasis - sets the preemphasis to be applied for transmission. | ||
129 | |||
130 | RNL | ||
131 | === | ||
132 | |||
133 | This device also has an interface to measure received noise level. To do that, you should | ||
134 | ioctl the device node. Here is an code of example: | ||
135 | |||
136 | int main (int argc, char *argv[]) | ||
137 | { | ||
138 | struct si4713_rnl rnl; | ||
139 | int fd = open("/dev/radio0", O_RDWR); | ||
140 | int rval; | ||
141 | |||
142 | if (argc < 2) | ||
143 | return -EINVAL; | ||
144 | |||
145 | if (fd < 0) | ||
146 | return fd; | ||
147 | |||
148 | sscanf(argv[1], "%d", &rnl.frequency); | ||
149 | |||
150 | rval = ioctl(fd, SI4713_IOC_MEASURE_RNL, &rnl); | ||
151 | if (rval < 0) | ||
152 | return rval; | ||
153 | |||
154 | printf("received noise level: %d\n", rnl.rnl); | ||
155 | |||
156 | close(fd); | ||
157 | } | ||
158 | |||
159 | The struct si4713_rnl and SI4713_IOC_MEASURE_RNL are defined under | ||
160 | include/media/si4713.h. | ||
161 | |||
162 | Stereo/Mono and RDS subchannels | ||
163 | =============================== | ||
164 | |||
165 | The device can also be configured using the available sub channels for | ||
166 | transmission. To do that use S/G_MODULATOR ioctl and configure txsubchans properly. | ||
167 | Refer to v4l2-spec for proper use of this ioctl. | ||
168 | |||
169 | Testing | ||
170 | ======= | ||
171 | Testing is usually done with v4l2-ctl utility for managing FM tuner cards. | ||
172 | The tool can be found in v4l-dvb repository under v4l2-apps/util directory. | ||
173 | |||
174 | Example for setting rds ps name: | ||
175 | # v4l2-ctl -d /dev/radio0 --set-ctrl=rds_ps_name="Dummy" | ||
176 | |||