Type Alias libosdp_sys::pd_command_callback_t

pub type pd_command_callback_t = Option<unsafe extern "C" fn(arg: *mut c_void, cmd: *mut osdp_cmd) -> c_int>;

@brief Callback for PD command notifications. After it has been registered with osdp_pd_set_command_callback, this method is invoked when the PD receives a command from the CP.

@param arg pointer that will was passed to the arg param of osdp_pd_set_command_callback. @param cmd pointer to the received command.

@retval 0 if LibOSDP must send a osdp_ACK response @retval -ve if LibOSDP must send a osdp_NAK response @retval +ve and modify the passed struct osdp_cmd *cmd if LibOSDP must send a specific response. This is useful for sending manufacturer specific reply osdp_MFGREP.

Aliased Type

enum pd_command_callback_t {
    None,
    Some(unsafe extern "C" fn(_: *mut c_void, _: *mut osdp_cmd) -> i32),
}

Variants

None

No value.

Some(unsafe extern "C" fn(_: *mut c_void, _: *mut osdp_cmd) -> i32)

Some value of type T.