SPI Master configuration structure.
#include <spi.h>
Baud rate.
Referenced by _spi_check_config(), _spi_set_config(), configure_spi_master(), ksz8851snl_interface_init(), run_baud_test(), run_spi_init_test(), setup_transfer_9bit_test(), spi_get_config_defaults(), and ssd1306_interface_init().