feat(linux): Show device path in --list-devices

camera/camera.go

@@ -20,6 +20,8 @@ type Options struct {
 type DeviceInfo struct {
 	Index int
 	Name  string
+	// Path is the OS device path (e.g. /dev/video0); Linux only, empty elsewhere.
+	Path string
 }
 
 // Info describes the negotiated capture format.

camera/camera_linux.go

@@ -261,7 +261,7 @@ func Devices() ([]DeviceInfo, error) {
 			name = d.Path
 		}
 
-		devices = append(devices, DeviceInfo{Index: i, Name: name})
+		devices = append(devices, DeviceInfo{Index: i, Name: name, Path: d.Path})
 	}
 
 	return devices, nil

cmd/cam2ip/main.go

@@ -103,7 +103,11 @@ func main() {
 		}
 
 		for _, d := range devices {
-			fmt.Printf("%d: %s\n", d.Index, d.Name)
+			if d.Path != "" {
+				fmt.Printf("%d: %s (%s)\n", d.Index, d.Name, d.Path)
+			} else {
+				fmt.Printf("%d: %s\n", d.Index, d.Name)
+			}
 		}
 
 		os.Exit(0)