Display where each input is being routed.

Now both sides of a connection are seen:
  input  -> output(s)
  output <- input

ChangeLog

@@ -2,6 +2,7 @@
 2014-11-29 : Version 0.4-dev
  * Add videohubctrl(1) man page.
  * Add all, install, uninstall and help Makefile targets.
+ * Display where each input is being routed.
 
 2014-11-28 : Version 0.3
  * Rename -v / --verbose parameter to -d / --debug.

README

@@ -152,26 +152,28 @@ Device info
   -----------------------------------------------------------
 
 Video inputs
-  ---------------------------------
-  | ## | Video input name         |
-  ---------------------------------
-  |  1 | Windows 1                |
-  |  2 | Windows 2                |
-  |  3 | Windows 3                |
-  |  4 | Windows 4 HD             |
-  |  5 | Input 5                  |
-  |  6 | Input 6                  |
-  |  7 | Input 7                  |
-  |  8 | Input 8                  |
-  |  9 | Input 9                  |
-  | 10 | Input 10                 |
-  | 11 | Input 11                 |
-  | 12 | DPlay1                   |
-  | 13 | DPlay2                   |
-  | 14 | Input 14                 |
-  | 15 | Input 15                 |
-  | 16 | Loopback                 |
-  ---------------------------------
+  ----------------------------------------------------------------
+  | ## | Video input name         | n | Routed to output         |
+  ----------------------------------------------------------------
+  |  1 | Windows 1                | 2 | Enc1 3                   |
+  |    |                          | . | Enc1 4                   |
+  |  2 | Windows 2                | 1 | Enc1 2                   |
+  |  3 | Windows 3                | 1 | Enc1 1                   |
+  |  4 | Windows 4 HD             | 2 | Output 8                 |
+  |    |                          | . | Enc2 1                   |
+  |  5 | Input 5                  | 1 | Output 5                 |
+  |  6 | Input 6                  | 1 | Output 6                 |
+  |  7 | Input 7                  | 1 | Output 7                 |
+  |  8 | Input 8                  | 0 | -                        |
+  |  9 | Input 9                  | 0 | -                        |
+  | 10 | Input 10                 | 1 | Output 10                |
+  | 11 | Input 11                 | 1 | Output 11                |
+  | 12 | DPlay1                   | 1 | Output 13                |
+  | 13 | DPlay2                   | 1 | Denc                     |
+  | 14 | Input 14                 | 1 | Output 14                |
+  | 15 | Input 15                 | 1 | Output 15                |
+  | 16 | Loopback                 | 1 | Loopback                 |
+  ----------------------------------------------------------------
 
 Video outputs
   ----------------------------------------------------------------
@@ -184,7 +186,7 @@ Video outputs
   |  5 |   | Output 5                 | Input 5                  |
   |  6 |   | Output 6                 | Input 6                  |
   |  7 |   | Output 7                 | Input 7                  |
-  |  8 |   | Output 8                 | Input 8                  |
+  |  8 |   | Output 8                 | Windows 4 HD             |
   |  9 | L | Enc2 1                   | Windows 4 HD             |
   | 10 |   | Output 10                | Input 10                 |
   | 11 |   | Output 11                | Input 11                 |

display.c

@@ -45,18 +45,38 @@ void print_device_info(struct videohub_data *d) {
 }
 
 void print_device_video_inputs(struct videohub_data *d) {
-	unsigned int i, len = 33;
+	unsigned int i, r, len = 64;
 	if (!d->device.num_video_inputs)
 		return;
 	printf("Video inputs\n");
 	printf_line(len);
-	printf("  | ## | %-24s |\n", "Video input name");
+	printf("  | ## | %-24s | n | %-24s |\n", "Video input name", "Routed to output");
 	printf_line(len);
 	for(i = 0; i < d->device.num_video_inputs; i++) {
-		printf("  | %2d | %-24s |\n",
-			i + 1,
-			d->inputs[i].name
-		);
+		unsigned int num_outputs = 0, routed_to = 0;
+		for(r = 0; r < d->device.num_video_outputs; r++) {
+			if (d->outputs[r].routed_to == i) {
+				num_outputs++;
+				if (num_outputs == 1)
+					routed_to = r; // The first output
+			}
+		}
+		printf("  | %2d | %-24s | %d | ", i + 1, d->inputs[i].name, num_outputs);
+		if (num_outputs == 0) {
+			printf("%-24s |\n", "-");
+		} else {
+			printf("%-24s |\n", d->outputs[routed_to].name);
+			bool first_skipped = false;
+			for(r = 0; r < d->device.num_video_outputs; r++) {
+				if (d->outputs[r].routed_to == i) {
+					if (!first_skipped) {
+						first_skipped = true;
+						continue;
+					}
+					printf("  | %2s | %-24s | %s | %-24s |\n", " ", " ", ".", d->outputs[r].name);
+				}
+			}
+		}
 	}
 	printf_line(len);
 	printf("\n");

videohubctrl.1

@@ -45,7 +45,8 @@ Show the command line that will restore the device to it's configuration.
 Display main device info including model, number of ports, etc.
 .TP
 \fB\-\-list\-vinputs\fR
-Display device video inputs and their names.
+Display device video inputs and their names, how many outputs an input
+is being routed to and a list of the outputs.
 .TP
 \fB\-\-list\-voutputs\fR
 Display device video outputs, their names, locking status and which