diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index a7c78ac96270..7f4f891c9853 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -915,6 +915,13 @@ config PLAYSTATION_FF
 	  Say Y here if you would like to enable force feedback support for
 	  PlayStation game controllers.
 
+config HID_RAZER_BLACKWIDOW
+	tristate "Razer Blackwidow non-fully HID-compliant devices"
+	depends on HID
+	help
+	Support for Razer devices that are not fully compliant with the
+	HID standard.
+
 config HID_PRIMAX
 	tristate "Primax non-fully HID-compliant devices"
 	depends on HID
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index 55a6fa3eca5a..e2a9f506f87e 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -98,6 +98,7 @@ hid-picolcd-$(CONFIG_DEBUG_FS)		+= hid-picolcd_debugfs.o
 obj-$(CONFIG_HID_PLANTRONICS)	+= hid-plantronics.o
 obj-$(CONFIG_HID_PLAYSTATION)	+= hid-playstation.o
 obj-$(CONFIG_HID_PRIMAX)	+= hid-primax.o
+obj-$(CONFIG_HID_RAZER_BLACKWIDOW)         += hid-razer-blackwidow.o
 obj-$(CONFIG_HID_REDRAGON)	+= hid-redragon.o
 obj-$(CONFIG_HID_RETRODE)	+= hid-retrode.o
 obj-$(CONFIG_HID_ROCCAT)	+= hid-roccat.o hid-roccat-common.o \
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 19da07777d62..793efdd0a93d 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -1024,6 +1024,9 @@
 #define I2C_PRODUCT_ID_RAYDIUM_3118	0x3118
 
 #define USB_VENDOR_ID_RAZER            0x1532
+#define USB_DEVICE_ID_RAZER_BLACKWIDOW_ULTIMATE   0x010D
+#define USB_DEVICE_ID_RAZER_BLACKWIDOW            0x010e
+#define USB_DEVICE_ID_RAZER_BLACKWIDOW_CLASSIC    0x011b
 #define USB_DEVICE_ID_RAZER_BLADE_14   0x011D
 
 #define USB_VENDOR_ID_REALTEK		0x0bda
diff --git a/drivers/hid/hid-razer-blackwidow.c b/drivers/hid/hid-razer-blackwidow.c
new file mode 100644
index 000000000000..8668a143837f
--- /dev/null
+++ b/drivers/hid/hid-razer-blackwidow.c
@@ -0,0 +1,122 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ *  HID driver for gaming keys on Razer Blackwidow gaming keyboards
+ *  Macro Key Keycodes: M1 = 191, M2 = 192, M3 = 193, M4 = 194, M5 = 195
+ *
+ *  Copyright (c) 2021 Jelle van der Waa <jvanderwaa@redhat.com>
+ */
+
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+#include <linux/random.h>
+#include <linux/sched.h>
+#include <linux/usb.h>
+#include <linux/wait.h>
+
+#include "hid-ids.h"
+
+#define map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, EV_KEY, (c))
+
+#define RAZOR_BLACKWIDOW_TRANSFER_BUF_SIZE	91
+
+static bool macro_key_remapping = 1;
+module_param(macro_key_remapping, bool, 0644);
+MODULE_PARM_DESC(macro_key_remapping, " on (Y) off (N)");
+
+
+static unsigned char blackwidow_init[RAZOR_BLACKWIDOW_TRANSFER_BUF_SIZE] = {
+	0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x04,
+	0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x04, 0x00
+};
+
+static int razer_blackwidow_input_mapping(struct hid_device *hdev,
+		struct hid_input *hi, struct hid_field *field,
+		struct hid_usage *usage, unsigned long **bit, int *max)
+{
+
+	if (!macro_key_remapping)
+		return 0;
+
+	if ((usage->hid & HID_UP_KEYBOARD) != HID_UP_KEYBOARD)
+		return 0;
+
+	switch (usage->hid & ~HID_UP_KEYBOARD) {
+	case 0x68:
+		map_key_clear(KEY_MACRO1);
+		return 1;
+	case 0x69:
+		map_key_clear(KEY_MACRO2);
+		return 1;
+	case 0x6a:
+		map_key_clear(KEY_MACRO3);
+		return 1;
+	case 0x6b:
+		map_key_clear(KEY_MACRO4);
+		return 1;
+	case 0x6c:
+		map_key_clear(KEY_MACRO5);
+		return 1;
+	}
+
+	return 0;
+}
+
+static int razer_blackwidow_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+	char *buf;
+	int ret = 0;
+
+	ret = hid_parse(hdev);
+	if (ret)
+		return ret;
+
+	// Only send the enable macro keys command for the third device identified as mouse input.
+	if (hdev->type == HID_TYPE_USBMOUSE) {
+		buf = kmemdup(blackwidow_init, RAZOR_BLACKWIDOW_TRANSFER_BUF_SIZE, GFP_KERNEL);
+		if (buf == NULL)
+			return -ENOMEM;
+
+		ret = hid_hw_raw_request(hdev, 0, buf, RAZOR_BLACKWIDOW_TRANSFER_BUF_SIZE,
+				HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
+		if (ret != RAZOR_BLACKWIDOW_TRANSFER_BUF_SIZE)
+			hid_err(hdev, "failed to enable macro keys: %d\n", ret);
+
+		kfree(buf);
+	}
+
+	return hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+}
+
+static const struct hid_device_id razer_blackwidow_devices[] = {
+	{ HID_USB_DEVICE(USB_VENDOR_ID_RAZER,
+		USB_DEVICE_ID_RAZER_BLACKWIDOW) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_RAZER,
+		USB_DEVICE_ID_RAZER_BLACKWIDOW_CLASSIC) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_RAZER,
+		USB_DEVICE_ID_RAZER_BLACKWIDOW_ULTIMATE) },
+	{ }
+};
+MODULE_DEVICE_TABLE(hid, razer_blackwidow_devices);
+
+static struct hid_driver razer_blackwidow_driver = {
+	.name = "razer-blackwidow",
+	.id_table = razer_blackwidow_devices,
+	.input_mapping = razer_blackwidow_input_mapping,
+	.probe = razer_blackwidow_probe,
+};
+module_hid_driver(razer_blackwidow_driver);
+
+MODULE_AUTHOR("Jelle van der Waa <jvanderwaa@redhat.com>");
+MODULE_LICENSE("GPL");
