How to know that SPI pins on Raspberry Pi Connector is enabled

Hi guys,

I’m using wp8548 module in mangOH red, I want to use SPI pin (19 MOSI, 21 MISO, 23 SCLK, 24 CS ) on Raspberry Pi Connector to transmit data from user space to my device via them but I really don’t know how to enable SPI pins ? What things I need to configure ?

Thanks