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ufm — USB driver for Cypress Semiconductor FM Radio
To compile this driver into the kernel, place the following line in your kernel configuration file: device ufm Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5): ufm_load="YES"
The ufm driver is not present in FreeBSD 13.0 and later.
The ufm driver provides support for the D-Link/GEMTEK FM tuner. The USB interface chip is the common Cypress 63001, and the tuner is a Philips TEA5757 radio chip that uses a serial interface to set the tuner parameters. This design is used in the D-Link DSB-R100 USB Radio. The ufm device must be configured in the kernel, along with usb(4) and one of the uhci(4) or ohci(4) controllers. Subsequently, the /dev/ufm0 device can be used by userland applications.
/dev/ufm0 blocking device node
The ufm driver was written by M. Warner Losh <imp@FreeBSD.org> for FreeBSD.