1 files changed, 6 insertions, 0 deletions
diff --git a/src/stm32/gpio.h b/src/stm32/gpio.h
index 13ab74bd..281e3a8d 100644
--- a/src/stm32/gpio.h
+++ b/src/stm32/gpio.h
@@ -21,6 +21,12 @@ struct gpio_in gpio_in_setup(uint32_t pin, int32_t pull_up);
 void gpio_in_reset(struct gpio_in g, int32_t pull_up);
 uint8_t gpio_in_read(struct gpio_in g);
 
+struct gpio_pwm {
+  void *reg;
+};
+struct gpio_pwm gpio_pwm_setup(uint8_t pin, uint32_t cycle_time, uint8_t val);
+void gpio_pwm_write(struct gpio_pwm g, uint32_t val);
+
 struct gpio_adc {
     void *adc;
     uint32_t chan;