F_REF 139 drivers/media/tuners/e4000.c #define F_REF dev->clk F_REF 67 drivers/media/tuners/fc2580.c #define F_REF dev->clk F_REF 139 drivers/media/tuners/msi001.c #define F_REF 24000000 F_REF 757 drivers/media/usb/msi2500/msi2500.c #define F_REF 24000000