diff --git a/services/inputflinger/reader/controller/PeripheralController.cpp b/services/inputflinger/reader/controller/PeripheralController.cpp
index a380b5e..eabf591 100644
--- a/services/inputflinger/reader/controller/PeripheralController.cpp
+++ b/services/inputflinger/reader/controller/PeripheralController.cpp
@@ -16,8 +16,10 @@
 
 #include <locale>
 #include <regex>
-#include <set>
+#include <sstream>
+#include <string>
 
+#include <android/sysprop/InputProperties.sysprop.h>
 #include <ftl/enum.h>
 
 #include "../Macros.h"
@@ -45,6 +47,10 @@
     return (brightness & 0xff) << 24 | (red & 0xff) << 16 | (green & 0xff) << 8 | (blue & 0xff);
 }
 
+static inline bool isKeyboardBacklightCustomLevelsEnabled() {
+    return sysprop::InputProperties::enable_keyboard_backlight_custom_levels().value_or(true);
+}
+
 /**
  * Input controller owned by InputReader device, implements the native API for querying input
  * lights, getting and setting the lights brightness and color, by interacting with EventHub
@@ -272,11 +278,43 @@
     for (const auto& [lightId, light] : mLights) {
         // Input device light doesn't support ordinal, always pass 1.
         InputDeviceLightInfo lightInfo(light->name, light->id, light->type, light->capabilityFlags,
-                                       /*ordinal=*/1);
+                                       /*ordinal=*/1, getPreferredBrightnessLevels(light.get()));
         deviceInfo->addLightInfo(lightInfo);
     }
 }
 
+// TODO(b/281822656): Move to constructor and add as a parameter to avoid parsing repeatedly.
+// Need to change lifecycle of Peripheral controller so that Input device configuration map is
+// available at construction time before moving this logic to constructor.
+std::set<BrightnessLevel> PeripheralController::getPreferredBrightnessLevels(
+        const Light* light) const {
+    std::set<BrightnessLevel> levels;
+    if (!isKeyboardBacklightCustomLevelsEnabled() ||
+        light->type != InputDeviceLightType::KEYBOARD_BACKLIGHT) {
+        return levels;
+    }
+    std::optional<std::string> keyboardBacklightLevels =
+            mDeviceContext.getConfiguration().getString("keyboard.backlight.brightnessLevels");
+    if (!keyboardBacklightLevels) {
+        return levels;
+    }
+    std::stringstream ss(*keyboardBacklightLevels);
+    while (ss.good()) {
+        std::string substr;
+        std::getline(ss, substr, ',');
+        char* end;
+        int32_t value = static_cast<int32_t>(strtol(substr.c_str(), &end, 10));
+        if (*end != '\0' || value < 0 || value > 255) {
+            ALOGE("Error parsing keyboard backlight brightness levels, provided levels = %s",
+                  keyboardBacklightLevels->c_str());
+            levels.clear();
+            break;
+        }
+        levels.insert(BrightnessLevel(value));
+    }
+    return levels;
+}
+
 void PeripheralController::dump(std::string& dump) {
     dump += INDENT2 "Input Controller:\n";
     if (!mLights.empty()) {
@@ -550,5 +588,4 @@
 int32_t PeripheralController::getEventHubId() const {
     return getDeviceContext().getEventHubId();
 }
-
 } // namespace android
diff --git a/services/inputflinger/reader/controller/PeripheralController.h b/services/inputflinger/reader/controller/PeripheralController.h
index 8ac42c3..07ade7c 100644
--- a/services/inputflinger/reader/controller/PeripheralController.h
+++ b/services/inputflinger/reader/controller/PeripheralController.h
@@ -76,6 +76,7 @@
 
         virtual void dump(std::string& dump) {}
 
+        void configureSuggestedBrightnessLevels();
         std::optional<std::int32_t> getRawLightBrightness(int32_t rawLightId);
         void setRawLightBrightness(int32_t rawLightId, int32_t brightness);
     };
@@ -152,6 +153,8 @@
 
     // Battery map from battery ID to battery
     std::unordered_map<int32_t, std::unique_ptr<Battery>> mBatteries;
+
+    std::set<BrightnessLevel> getPreferredBrightnessLevels(const Light* light) const;
 };
 
 } // namespace android
diff --git a/services/inputflinger/reader/include/InputDevice.h b/services/inputflinger/reader/include/InputDevice.h
index 0b8a608..2f8e5bd 100644
--- a/services/inputflinger/reader/include/InputDevice.h
+++ b/services/inputflinger/reader/include/InputDevice.h
@@ -74,7 +74,7 @@
     }
     inline bool hasMic() const { return mHasMic; }
 
-    inline bool isIgnored() { return !getMapperCount(); }
+    inline bool isIgnored() { return !getMapperCount() && !mController; }
 
     bool isEnabled();
     [[nodiscard]] std::list<NotifyArgs> setEnabled(bool enabled, nsecs_t when);
diff --git a/services/inputflinger/tests/InputReader_test.cpp b/services/inputflinger/tests/InputReader_test.cpp
index bfb371f..327513d 100644
--- a/services/inputflinger/tests/InputReader_test.cpp
+++ b/services/inputflinger/tests/InputReader_test.cpp
@@ -11070,6 +11070,101 @@
     ASSERT_EQ(controller.getLightColor(lights[0].id).value_or(-1), LIGHT_BRIGHTNESS);
 }
 
+TEST_F(LightControllerTest, Ignore_MonoLight_WithPreferredBacklightLevels) {
+    RawLightInfo infoMono = {.id = 1,
+                             .name = "mono_light",
+                             .maxBrightness = 255,
+                             .flags = InputLightClass::BRIGHTNESS,
+                             .path = ""};
+    mFakeEventHub->addRawLightInfo(infoMono.id, std::move(infoMono));
+    mFakeEventHub->addConfigurationProperty(EVENTHUB_ID, "keyboard.backlight.brightnessLevels",
+                                            "0,100,200");
+
+    PeripheralController& controller = addControllerAndConfigure<PeripheralController>();
+    std::list<NotifyArgs> unused =
+            mDevice->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
+                               /*changes=*/{});
+
+    InputDeviceInfo info;
+    controller.populateDeviceInfo(&info);
+    std::vector<InputDeviceLightInfo> lights = info.getLights();
+    ASSERT_EQ(1U, lights.size());
+    ASSERT_EQ(0U, lights[0].preferredBrightnessLevels.size());
+}
+
+TEST_F(LightControllerTest, KeyboardBacklight_WithNoPreferredBacklightLevels) {
+    RawLightInfo infoMono = {.id = 1,
+                             .name = "mono_keyboard_backlight",
+                             .maxBrightness = 255,
+                             .flags = InputLightClass::BRIGHTNESS |
+                                     InputLightClass::KEYBOARD_BACKLIGHT,
+                             .path = ""};
+    mFakeEventHub->addRawLightInfo(infoMono.id, std::move(infoMono));
+
+    PeripheralController& controller = addControllerAndConfigure<PeripheralController>();
+    std::list<NotifyArgs> unused =
+            mDevice->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
+                               /*changes=*/{});
+
+    InputDeviceInfo info;
+    controller.populateDeviceInfo(&info);
+    std::vector<InputDeviceLightInfo> lights = info.getLights();
+    ASSERT_EQ(1U, lights.size());
+    ASSERT_EQ(0U, lights[0].preferredBrightnessLevels.size());
+}
+
+TEST_F(LightControllerTest, KeyboardBacklight_WithPreferredBacklightLevels) {
+    RawLightInfo infoMono = {.id = 1,
+                             .name = "mono_keyboard_backlight",
+                             .maxBrightness = 255,
+                             .flags = InputLightClass::BRIGHTNESS |
+                                     InputLightClass::KEYBOARD_BACKLIGHT,
+                             .path = ""};
+    mFakeEventHub->addRawLightInfo(infoMono.id, std::move(infoMono));
+    mFakeEventHub->addConfigurationProperty(EVENTHUB_ID, "keyboard.backlight.brightnessLevels",
+                                            "0,100,200");
+
+    PeripheralController& controller = addControllerAndConfigure<PeripheralController>();
+    std::list<NotifyArgs> unused =
+            mDevice->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
+                               /*changes=*/{});
+
+    InputDeviceInfo info;
+    controller.populateDeviceInfo(&info);
+    std::vector<InputDeviceLightInfo> lights = info.getLights();
+    ASSERT_EQ(1U, lights.size());
+    ASSERT_EQ(3U, lights[0].preferredBrightnessLevels.size());
+    std::set<BrightnessLevel>::iterator it = lights[0].preferredBrightnessLevels.begin();
+    ASSERT_EQ(BrightnessLevel(0), *it);
+    std::advance(it, 1);
+    ASSERT_EQ(BrightnessLevel(100), *it);
+    std::advance(it, 1);
+    ASSERT_EQ(BrightnessLevel(200), *it);
+}
+
+TEST_F(LightControllerTest, KeyboardBacklight_WithWrongPreferredBacklightLevels) {
+    RawLightInfo infoMono = {.id = 1,
+                             .name = "mono_keyboard_backlight",
+                             .maxBrightness = 255,
+                             .flags = InputLightClass::BRIGHTNESS |
+                                     InputLightClass::KEYBOARD_BACKLIGHT,
+                             .path = ""};
+    mFakeEventHub->addRawLightInfo(infoMono.id, std::move(infoMono));
+    mFakeEventHub->addConfigurationProperty(EVENTHUB_ID, "keyboard.backlight.brightnessLevels",
+                                            "0,100,200,300,400,500");
+
+    PeripheralController& controller = addControllerAndConfigure<PeripheralController>();
+    std::list<NotifyArgs> unused =
+            mDevice->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
+                               /*changes=*/{});
+
+    InputDeviceInfo info;
+    controller.populateDeviceInfo(&info);
+    std::vector<InputDeviceLightInfo> lights = info.getLights();
+    ASSERT_EQ(1U, lights.size());
+    ASSERT_EQ(0U, lights[0].preferredBrightnessLevels.size());
+}
+
 TEST_F(LightControllerTest, RGBLight) {
     RawLightInfo infoRed = {.id = 1,
                             .name = "red",