[PATCH] HID: add driver for Gigabyte Aero vendor-specific brightness keys
From: Uddhav Swami
Date: Tue Jul 14 2026 - 20:45:15 EST
The Gigabyte Aero 15 XB keyboard (Chu Yuen Enterprise Co., Ltd,
USB ID 1044:7a3f) sends brightness up/down keypresses as vendor-defined
HID reports (Usage Page 0xFF02, Report ID 4) rather than standard HID
Consumer Control usages, causing KEY_BRIGHTNESSUP and KEY_BRIGHTNESSDOWN
to never reach the input subsystem.
Add a minimal HID driver that intercepts Report ID 4 and maps values
0x7D and 0x7E to KEY_BRIGHTNESSDOWN and KEY_BRIGHTNESSUP respectively.
Tested on: Gigabyte Aero 15 XB (USB ID 1044:7a3f)
Signed-off-by: Uddhav Swami <uddhavswami@xxxxxxxxx>
---
drivers/hid/Kconfig | 10 +++
drivers/hid/Makefile | 1 +
drivers/hid/hid-gigabyte.c | 127 +++++++++++++++++++++++++++++++++++++
drivers/hid/hid-ids.h | 5 +-
4 files changed, 141 insertions(+), 2 deletions(-)
create mode 100644 drivers/hid/hid-gigabyte.c
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 03f36899e458..fa74e67e35c8 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -406,6 +406,16 @@ config HID_GFRM
help
Support for Google Fiber TV Box remote controls
+config HID_GIGABYTE_AERO
+ tristate "Gigabyte Aero laptop vendor-specific keys"
+ depends on USB_HID
+ help
+ Support for vendor-specific keyboard keys on Gigabyte Aero
+ laptops
+
+ Currently the following device is known to be supported:
+ - Gigabyte Aero 15 XB
+
config HID_GLORIOUS
tristate "Glorious PC Gaming Race mice"
help
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index 23e6e3dd0c56..ef3a14b04126 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -55,6 +55,7 @@ obj-$(CONFIG_HID_EZKEY) += hid-ezkey.o
obj-$(CONFIG_HID_FT260) += hid-ft260.o
obj-$(CONFIG_HID_GEMBIRD) += hid-gembird.o
obj-$(CONFIG_HID_GFRM) += hid-gfrm.o
+obj-$(CONFIG_HID_GIGABYTE_AERO) += hid-gigabyte.o
obj-$(CONFIG_HID_GLORIOUS) += hid-glorious.o
obj-$(CONFIG_HID_VIVALDI_COMMON) += hid-vivaldi-common.o
obj-$(CONFIG_HID_GOODIX_SPI) += hid-goodix-spi.o
diff --git a/drivers/hid/hid-gigabyte.c b/drivers/hid/hid-gigabyte.c
new file mode 100644
index 000000000000..1c242734aed3
--- /dev/null
+++ b/drivers/hid/hid-gigabyte.c
@@ -0,0 +1,127 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * HID driver for Gigabyte Aero laptop vendor-specific brightness keys.
+ *
+ * The keyboard sends brightness up/down presses as a vendor-defined usage page
+ * report instead of standard HID Consumer Control usages.
+ *
+ * This driver intercepts them and emits the correct KEY_BRIGHTNESSUP /
+ * KEY_BRIGHTNESSDOWN events.
+ *
+ * Currently supported devices are:
+ * Gigabyte Aero 15 XB
+ *
+ * Copyright (c) 2026 Uddhav Swami <uddhavswami@xxxxxxxxx>
+ *
+ * This module based on hid-asus by
+ * Copyright (c) 2016 Yusuke Fujimaki <usk.fujimaki@xxxxxxxxx>
+ * Copyright (c) 2016 Brendan McGrath <redmcg@xxxxxxxxxxxxxxxxxxx>
+ * Copyright (c) 2016 Victor Vlasenko <victor.vlasenko@xxxxxxxxxxxx>
+ * Copyright (c) 2016 Frederik Wenigwieser <frederik.wenigwieser@xxxxxxxxx>
+ */
+
+#include <linux/hid.h>
+#include <linux/module.h>
+#include <linux/input.h>
+
+#include "hid-ids.h"
+
+MODULE_AUTHOR("Uddhav Swami <uddhavswami@xxxxxxxxx>");
+MODULE_DESCRIPTION("HID driver for Gigabyte Aero");
+
+#define GIGABYTE_AERO_REPORT_ID 0x04
+#define GIGABYTE_AERO_BRIGHTNESS_DOWN 0x7D
+#define GIGABYTE_AERO_BRIGHTNESS_UP 0x7E
+
+struct gigabyte_drvdata {
+ struct input_dev *input;
+};
+
+static int gigabyte_aero_raw_event(struct hid_device *hdev,
+ struct hid_report *report, u8 *data,
+ int size)
+{
+ struct gigabyte_drvdata *drvdata = hid_get_drvdata(hdev);
+
+ if (!drvdata->input)
+ return 0;
+
+ if (report->id != GIGABYTE_AERO_REPORT_ID || size < 4)
+ return 0;
+
+ switch (data[3]) {
+ case GIGABYTE_AERO_BRIGHTNESS_DOWN:
+ input_report_key(drvdata->input, KEY_BRIGHTNESSDOWN, 1);
+ input_sync(drvdata->input);
+ input_report_key(drvdata->input, KEY_BRIGHTNESSDOWN, 0);
+ input_sync(drvdata->input);
+ return 1;
+ case GIGABYTE_AERO_BRIGHTNESS_UP:
+ input_report_key(drvdata->input, KEY_BRIGHTNESSUP, 1);
+ input_sync(drvdata->input);
+ input_report_key(drvdata->input, KEY_BRIGHTNESSUP, 0);
+ input_sync(drvdata->input);
+ return 1;
+ default:
+ return 0;
+ }
+}
+
+static int gigabyte_aero_input_configured(struct hid_device *hdev,
+ struct hid_input *hi)
+{
+ struct gigabyte_drvdata *drvdata = hid_get_drvdata(hdev);
+ struct input_dev *input = hi->input;
+
+ input_set_capability(input, EV_KEY, KEY_BRIGHTNESSUP);
+ input_set_capability(input, EV_KEY, KEY_BRIGHTNESSDOWN);
+
+ drvdata->input = input;
+
+ return 0;
+}
+
+static int gigabyte_aero_probe(struct hid_device *hdev,
+ const struct hid_device_id *id)
+{
+ struct gigabyte_drvdata *drvdata;
+ int ret;
+
+ drvdata = devm_kzalloc(&hdev->dev, sizeof(*drvdata), GFP_KERNEL);
+ if (!drvdata)
+ return -ENOMEM;
+
+ hid_set_drvdata(hdev, drvdata);
+
+ ret = hid_parse(hdev);
+ if (ret) {
+ hid_err(hdev, "gigabyte_aero: parse failed: %d\n", ret);
+ return ret;
+ }
+
+ ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+ if (ret) {
+ hid_err(hdev, "gigabyte_aero: hw start failed: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static const struct hid_device_id gigabyte_aero_devices[] = {
+ { HID_USB_DEVICE(USB_VENDOR_ID_CHU_YUEN,
+ USB_DEVICE_ID_CHU_YUEN_AERO_KBD) },
+ {}
+};
+MODULE_DEVICE_TABLE(hid, gigabyte_aero_devices);
+
+static struct hid_driver gigabyte_aero_driver = {
+ .name = "hid_gigabyte_aero",
+ .id_table = gigabyte_aero_devices,
+ .probe = gigabyte_aero_probe,
+ .raw_event = gigabyte_aero_raw_event,
+ .input_configured = gigabyte_aero_input_configured,
+};
+module_hid_driver(gigabyte_aero_driver);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index b70f719b3b07..e33cdf33929b 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -330,6 +330,9 @@
#define USB_VENDOR_ID_CHUNGHWAT 0x2247
#define USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH 0x0001
+#define USB_VENDOR_ID_CHU_YUEN 0x1044
+#define USB_DEVICE_ID_CHU_YUEN_AERO_KBD 0x7a3f
+
#define USB_VENDOR_ID_CIDC 0x1677
#define I2C_VENDOR_ID_CIRQUE 0x0488
@@ -1319,7 +1322,6 @@
#define USB_DEVICE_ID_SMK_NSG_MR5U_REMOTE 0x0368
#define USB_DEVICE_ID_SMK_NSG_MR7U_REMOTE 0x0369
-
#define USB_VENDOR_ID_SONY 0x054c
#define USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE 0x024b
#define USB_DEVICE_ID_SONY_VAIO_VGP_MOUSE 0x0374
@@ -1610,7 +1612,6 @@
#define USB_DEVICE_ID_PRIMAX_PIXART_MOUSE_4D65 0x4d65
#define USB_DEVICE_ID_PRIMAX_PIXART_MOUSE_4E22 0x4e22
-
#define USB_VENDOR_ID_RISO_KAGAKU 0x1294 /* Riso Kagaku Corp. */
#define USB_DEVICE_ID_RI_KA_WEBMAIL 0x1320 /* Webmail Notifier */
--
2.55.0