Added a new function for the keepalive command.

src/libdivecomputer.symbols

@@ -32,6 +32,7 @@ message_set_logfile
 mares_nemo_device_open
 mares_nemo_extract_dives
 oceanic_atom2_device_open
+oceanic_atom2_device_keepalive
 oceanic_veo250_device_open
 oceanic_veo250_device_keepalive
 oceanic_vtpro_device_open

src/oceanic_atom2.c

@@ -314,6 +314,24 @@ oceanic_atom2_device_close (device_t *abstract)
 }
 
 
+device_status_t
+oceanic_atom2_device_keepalive (device_t *abstract)
+{
+	oceanic_atom2_device_t *device = (oceanic_atom2_device_t*) abstract;
+
+	if (! device_is_oceanic_atom2 (abstract))
+		return DEVICE_STATUS_TYPE_MISMATCH;
+
+	// Send the command to the dive computer.
+	unsigned char command[4] = {0x91, 0x05, 0xA5, 0x00};
+	device_status_t rc = oceanic_atom2_transfer (device, command, sizeof (command), NULL, 0);
+	if (rc != DEVICE_STATUS_SUCCESS)
+		return rc;
+
+	return DEVICE_STATUS_SUCCESS;
+}
+
+
 static device_status_t
 oceanic_atom2_device_version (device_t *abstract, unsigned char data[], unsigned int size)
 {

src/oceanic_atom2.h

@@ -34,6 +34,9 @@ extern "C" {
 device_status_t
 oceanic_atom2_device_open (device_t **device, const char* name);
 
+device_status_t
+oceanic_atom2_device_keepalive (device_t *device);
+
 #ifdef __cplusplus
 }
 #endif /* __cplusplus */