From 2f968357a368ee59f53d75119b893487abd3883b Mon Sep 17 00:00:00 2001 From: Lorenz Meier Date: Fri, 24 Jan 2014 17:28:04 +0100 Subject: Make the protocol version more descriptive - helps to understand when / how px4io detect fails. --- src/drivers/px4io/px4io.cpp | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'src/drivers') diff --git a/src/drivers/px4io/px4io.cpp b/src/drivers/px4io/px4io.cpp index 519aa96eb..6f1323fce 100644 --- a/src/drivers/px4io/px4io.cpp +++ b/src/drivers/px4io/px4io.cpp @@ -580,6 +580,12 @@ PX4IO::init() /* get some parameters */ unsigned protocol = io_reg_get(PX4IO_PAGE_CONFIG, PX4IO_P_CONFIG_PROTOCOL_VERSION); + if (protocol == _io_reg_get_error) { + log("failed to communicate with IO"); + mavlink_log_emergency(_mavlink_fd, "[IO] failed to communicate with IO, abort."); + return -1; + } + if (protocol != PX4IO_PROTOCOL_VERSION) { log("protocol/firmware mismatch"); mavlink_log_emergency(_mavlink_fd, "[IO] protocol/firmware mismatch, abort."); -- cgit v1.2.3