diff --git a/htdocs/settings.js b/htdocs/settings.js
index 7936176..278e1c0 100644
--- a/htdocs/settings.js
+++ b/htdocs/settings.js
@@ -1,7 +1,8 @@
-function Input(name, value, label) {
+function Input(name, value, options) {
     this.name = name;
     this.value = value;
-    this.label = label;
+    this.options = options;
+    this.label = options && options.label || name;
 };
 
 Input.prototype.bootstrapify = function(input) {
@@ -36,6 +37,16 @@ NumberInput.prototype.render = function() {
     return this.bootstrapify($('<input type="number" name="' + this.name + '" value="' + this.value + '">'));
 };
 
+function SoapyGainInput() {
+    Input.apply(this, arguments);
+}
+
+SoapyGainInput.prototype = new Input();
+
+SoapyGainInput.prototype.render = function(){
+    return this.bootstrapify($('<div>Soapy gain settings go here</div>'));
+};
+
 function ProfileInput() {
     Input.apply(this, arguments);
 };
@@ -94,37 +105,49 @@ SdrDevice.prototype.getMappings = function() {
     return {
         "name": {
             constructor: TextInput,
-            label: "Name",
+            inputOptions: {
+                label: "Name"
+            },
             initialValue: "",
             includeInDefault: true
         },
         "type": {
             constructor: TextInput,
-            label: "Type",
+            inputOptions: {
+                label: "Type"
+            },
             initialValue: '',
             includeInDefault: true
         },
         "ppm": {
             constructor: NumberInput,
-            label: "PPM",
+            inputOptions: {
+                label: "PPM"
+            },
             initialValue: 0
         },
         "profiles": {
             constructor: ProfileInput,
-            label: "Profiles",
+            inputOptions: {
+                label: "Profiles"
+            },
             initialValue: [],
             includeInDefault: true,
             position: 100
         },
         "scheduler": {
             constructor: SchedulerInput,
-            label: "Scheduler",
+            inputOptions: {
+                label: "Scheduler",
+            },
             initialValue: {},
             position: 101
         },
         "rf_gain": {
             constructor: TextInput,
-            label: "Gain",
+            inputOptions: {
+                label: "Gain",
+            },
             initialValue: 0
         }
     };
@@ -140,11 +163,6 @@ SdrDevice.prototype.getInputClass = function(key) {
     return mapping && mapping.constructor || TextInput;
 };
 
-SdrDevice.prototype.getLabel = function(key) {
-    var mapping = this.getMapping(key);
-    return mapping && mapping.label || key;
-};
-
 SdrDevice.prototype.getInitialValue = function(key) {
     var mapping = this.getMapping(key);
     return mapping && ('initialValue' in mapping) ? mapping['initialValue'] : false;
@@ -155,6 +173,16 @@ SdrDevice.prototype.getPosition = function(key) {
     return mapping && mapping.position || 10;
 };
 
+SdrDevice.prototype.getInputOptions = function(key) {
+    var mapping = this.getMapping(key);
+    return mapping && mapping.inputOptions || {};
+};
+
+SdrDevice.prototype.getLabel = function(key) {
+    var options = this.getInputOptions(key);
+    return options && options.label || key;
+};
+
 SdrDevice.prototype.render = function() {
     var self = this;
     self.el.empty();
@@ -164,7 +192,7 @@ SdrDevice.prototype.render = function() {
     }).forEach(function(key){
         var value = data[key];
         var inputClass = self.getInputClass(key);
-        var input = new inputClass(key, value, self.getLabel(key));
+        var input = new inputClass(key, value, self.getInputOptions(key));
         self.inputs[key] = input;
         self.el.append(input.render());
     });
@@ -190,7 +218,7 @@ SdrDevice.prototype.renderFieldSelector = function() {
     '</div>';
 };
 
-RtlSdrDevice = function(el, data) {
+RtlSdrDevice = function() {
     SdrDevice.apply(this, arguments);
 };
 
@@ -202,14 +230,58 @@ RtlSdrDevice.prototype.getMappings = function() {
     return $.extend(new Object(), mappings, {
         "device": {
             constructor: TextInput,
-            label: "Serial Number",
+            inputOptions:{
+                label: "Serial number"
+            },
             initialValue: ""
         }
     });
 };
 
+SoapySdrDevice = function() {
+    SdrDevice.apply(this, arguments);
+};
+
+SoapySdrDevice.prototype = Object.create(SdrDevice.prototype);
+SoapySdrDevice.prototype.constructor = SoapySdrDevice;
+
+SoapySdrDevice.prototype.getMappings = function() {
+    var mappings = SdrDevice.prototype.getMappings.apply(this, arguments);
+    return $.extend(new Object(), mappings, {
+        "device": {
+            constructor: TextInput,
+            inputOptions:{
+                label: "Soapy device selector"
+            },
+            initialValue: ""
+        }
+    });
+};
+
+SdrplaySdrDevice = function() {
+    SoapySdrDevice.apply(this, arguments);
+};
+
+SdrplaySdrDevice.prototype = Object.create(SoapySdrDevice.prototype);
+SdrplaySdrDevice.prototype.constructor = SdrplaySdrDevice;
+
+SdrplaySdrDevice.prototype.getMappings = function() {
+    var mappings = SoapySdrDevice.prototype.getMappings.apply(this, arguments);
+    return $.extend(new Object(), mappings, {
+        "rf_gain": {
+            constructor: SoapyGainInput,
+            initialValue: 0,
+            inputOptions: {
+                label: "Gain",
+                gains: ['RFGR', 'IFGR']
+            }
+        }
+    });
+};
+
 SdrDevice.types = {
-    'rtl_sdr': RtlSdrDevice
+    'rtl_sdr': RtlSdrDevice,
+    'sdrplay': SdrplaySdrDevice
 };
 
 $.fn.sdrdevice = function() {