Function otLinkGetWakeupChannel 

pub unsafe extern "C" fn otLinkGetWakeupChannel(
    aInstance: *mut otInstance,
) -> u8

Gets the Wake-up channel.

Requires OPENTHREAD_CONFIG_WAKEUP_COORDINATOR_ENABLE or OPENTHREAD_CONFIG_WAKEUP_END_DEVICE_ENABLE.

@param[in] aInstance A pointer to an OpenThread instance.

@returns The Wake-up channel.