rf69_set_output_power_level 1195 drivers/staging/pi433/pi433_if.c retval = rf69_set_output_power_level(spi, 13); rf69_set_output_power_level 30 drivers/staging/pi433/rf69.h int rf69_set_output_power_level(struct spi_device *spi, u8 power_level);