config RADIO_SI470X tristate "Silicon Labs Si470x FM Radio Receiver support" depends on VIDEO_V4L2 help This is a driver for devices with the Silicon Labs SI470x chip (either via USB or I2C buses). Say Y here if you want to connect this type of radio to your computer's USB port or if it is used by some other driver via I2C bus. To compile this driver as a module, choose M here: the module will be called radio-si470x-common. config USB_SI470X tristate "Silicon Labs Si470x FM Radio Receiver support with USB" depends on USB && RADIO_SI470X help This is a driver for USB devices with the Silicon Labs SI470x chip. Currently these devices are known to work: - 10c4:818a: Silicon Labs USB FM Radio Reference Design - 06e1:a155: ADS/Tech FM Radio Receiver (formerly Instant FM Music) - 1b80:d700: KWorld USB FM Radio SnapMusic Mobile 700 (FM700) - 10c5:819a: Sanei Electric FM USB Radio (aka DealExtreme.com PCear) Sound is provided by the ALSA USB Audio/MIDI driver. Therefore if you don't want to use the device solely for RDS receiving, it is recommended to also select SND_USB_AUDIO. Please have a look at the documentation, especially on how to redirect the audio stream from the radio to your sound device: Documentation/media/v4l-drivers/si470x.rst Say Y here if you want to connect this type of radio to your computer's USB port. To compile this driver as a module, choose M here: the module will be called radio-usb-si470x. config I2C_SI470X tristate "Silicon Labs Si470x FM Radio Receiver support with I2C" depends on I2C && RADIO_SI470X help This is a driver for I2C devices with the Silicon Labs SI470x chip. Say Y here if you want to connect this type of radio to your computer's I2C port. To compile this driver as a module, choose M here: the module will be called radio-i2c-si470x.