Function mmal_sys::mmal_vc_host_log

pub unsafe extern "C" fn mmal_vc_host_log(msg: *const c_char) -> Type

Stores an arbitrary text message in a circular buffer inside the MMAL VC server. The purpose of this message is to log high level events from the host in order to diagnose problems that require multiple actions to reproduce. e.g. taking multiple pictures with different settings.

@param msg The message text. @return MMAL_SUCCESS if the message was logged or MMAL_ENOSYS if the API if not supported.