From 97fe56a4e7b8eeebb19e047e4c441d65114553d3 Mon Sep 17 00:00:00 2001
From: Julian Oes <julian@oes.ch>
Date: Sun, 4 Dec 2016 18:11:40 +0100
Subject: [PATCH] dsm: add deinit function

This implements closing of the serial port which previously was not
taken care of.
---
 src/lib/rc/dsm.c | 7 +++++++
 src/lib/rc/dsm.h | 1 +
 2 files changed, 8 insertions(+)

diff --git a/src/lib/rc/dsm.c b/src/lib/rc/dsm.c
index 951d49d806..2d2dd0db45 100644
--- a/src/lib/rc/dsm.c
+++ b/src/lib/rc/dsm.c
@@ -305,6 +305,13 @@ dsm_init(const char *device)
 	}
 }
 
+void
+dsm_deinit()
+{
+	close(dsm_fd);
+	dsm_fd = -1;
+}
+
 #ifdef GPIO_SPEKTRUM_PWR_EN
 /**
  * Handle DSM satellite receiver bind mode handler
diff --git a/src/lib/rc/dsm.h b/src/lib/rc/dsm.h
index 6793abb224..6660223df7 100644
--- a/src/lib/rc/dsm.h
+++ b/src/lib/rc/dsm.h
@@ -54,6 +54,7 @@ __BEGIN_DECLS
 #define DSM_BUFFER_SIZE		(DSM_FRAME_SIZE + DSM_FRAME_SIZE / 2)
 
 __EXPORT int	dsm_init(const char *device);
+__EXPORT void	dsm_deinit();
 __EXPORT void	dsm_proto_init(void);
 __EXPORT int	dsm_config(int dsm_fd);
 __EXPORT bool	dsm_input(int dsm_fd, uint16_t *values, uint16_t *num_values, bool *dsm_11_bit, uint8_t *n_bytes,