port: define new generic 'removed' signal

This signal indicates that the port is no longer accessible. Unlike a
udev port removal event, this indication may happen even if the port
is still exposed by the system.

It is designed to detect protocol proxy crashes, and so when such
event is detected by the modem, a full reprobe of the device will be
done to start from scratch the protocol management operations.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/mm-port.h b/src/mm-port.h
index 75e749eb..e0cca85c 100644
--- a/src/mm-port.h
+++ b/src/mm-port.h
@@ -61,6 +61,7 @@ typedef enum { /*< underscore_name=mm_port_type >*/
 #define MM_PORT_KERNEL_DEVICE "kernel-device"
 
 #define MM_PORT_SIGNAL_TIMED_OUT "timed-out"
+#define MM_PORT_SIGNAL_REMOVED   "removed"
 
 typedef struct _MMPort MMPort;
 typedef struct _MMPortClass MMPortClass;
@@ -76,6 +77,7 @@ struct _MMPortClass {
 
     /* signals */
     void (* timed_out) (MMPort *port, guint n_consecutive_replies);
+    void (* removed)   (MMPort *port);
 };
 
 GType mm_port_get_type (void);