Editing N900 FM radio receiver
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==Software== | ==Software== | ||
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===Kernel=== | ===Kernel=== | ||
+ | The FM receiver is implemented as a video4linux radio device by the [http://mxr.maemo.org/fremantle/source/kernel/drivers/media/radio/radio-bcm2048.c bcm2048] module. | ||
+ | This controls the receiver over the [[N900 Hardware Bus I2C]]. | ||
- | + | It appears as device /dev/radio1. | |
- | + | v4l2-ctl --all -d /dev/radio1 | |
- | + | Driver Info: | |
- | v4l2-ctl --all -d /dev/radio1 | + | Driver name : bcm2048 |
- | Driver Info: | + | Card type : Broadcom bcm2048 FM Radio Recei |
- | + | Bus info : I2C: 0x22 | |
- | + | Driver version: 1 | |
- | + | Capabilities : 0x00050400 | |
- | + | Tuner | |
- | + | Radio | |
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Video input : 0 | Video input : 0 | ||
- | Frequency: 1518400 (94.900000 MHz) | + | Frequency: 1518400 (94.900000 MHz) |
- | Video Standard = 0x00000000 | + | Video Standard = 0x00000000 |
- | Streaming Parameters Video Capture: | + | Streaming Parameters Video Capture: |
- | + | Frames per second: 25.000 (25/1) | |
- | + | Read buffers : 0 | |
- | Tuner: | + | Tuner: |
- | + | Name : FM Receiver | |
- | + | Capabilities : 62.5 Hz stereo | |
- | + | Frequency range : 87.5 MHz - 108.0 MHz | |
- | + | Signal strength/AFC : 0%/0 | |
- | + | Current audio mode : stereo | |
- | + | Available subchannels: stereo | |
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The module is only loaded when the radio is used. | The module is only loaded when the radio is used. | ||
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===User=== | ===User=== | ||
- | + | The only (?) userspace application that uses the FM receiver is [http://maemo.org/packages/package_instance/view/fremantle_extras_free_armel/fmradio/2010.03.20/ FMRadio]. | |
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- | [http://maemo.org/packages/view/fmradio/ | + | |
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[[Category:N900 Hardware]] | [[Category:N900 Hardware]] |
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