config BR2_PACKAGE_LIBRTLSDR bool "librtlsdr" depends on BR2_TOOLCHAIN_HAS_THREADS select BR2_PACKAGE_LIBUSB help Library and command line programs for accessing RTL2832U SDR dongles. http://sdr.osmocom.org/trac/wiki/rtl-sdr/ if BR2_PACKAGE_LIBRTLSDR config BR2_PACKAGE_LIBRTLSDR_DETACH_DRIVER bool "Detach kernel driver" default y help Enable this option if you would like librtlsdr to automatically detach any kernel driver associated to the RTL2832U USB device on startup if one is loaded. config BR2_PACKAGE_LIBRTLSDR_ZEROCOPY bool "Enable usbfs zero-copy support" default y help This option allows to use kernel usbfs mmap instead of buffers in userspace. If you experiment crash with kernel < 5.6, disable this option. endif comment "librtlsdr needs a toolchain w/ threads" depends on !BR2_TOOLCHAIN_HAS_THREADS