#define ST7565_BOOSTER_RATIO_SET 0xf8
#define ST7565_NOP 0xe3
-#define AO_ST7565_SPI_SPEED ao_spi_speed(AO_ST7565_SPI_BUS, 10000000)
+/* Max 50ns SPI clock time */
+#define AO_ST7565_SPI_SPEED ao_spi_speed(AO_ST7565_SPI_BUS, 20000000)
void
ao_st7565_update(struct ao_bitmap *bitmap);
+void
+ao_st7565_set_brightness(uint8_t val);
+
+uint8_t
+ao_st7565_get_brightness(void);
+
void
ao_st7565_init(void);