38.1.5.14 usart_async_flow_control_status
Retrieve the state of flow control pins.
int32_t usart_async_flow_control_status(
const struct usart_async_descriptor *const descr,
union usart_flow_control_state *const state
)
This function retrieves the flow control pins if the flow control is enabled.
The function can return USART_FLOW_CONTROL_STATE_UNAVAILABLE in case if the flow control is done by the hardware and the pins state cannot be read out.
Parameters
- descr
-
Type: const struct usart_async_descriptor Struct *const
A USART descriptor which is used to communicate via USART
- state
-
Type: union usart_flow_control_state *const
The state of flow control pins
Returns
Type: int32_t
The status of flow control state reading.