Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid

Pull HID updates from Jiri Kosina:
 "Some highlights:

   - hid-sony improvements of Sixaxis device support by Antonio Ospite
   - hid-hyperv driven devices can now be used as wakeup source, by
     Dexuan Cui
   - hid-lenovo driver is now more generic and supports more devices, by
     Jamie Lentin
   - hid-huion now supports wider range of tablets, by Nikolai
     Kondrashov
   - other various unsorted fixes and device ID additions"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (30 commits)
  HID: hyperv: register as a wakeup source
  HID: sony: Default initialize all elements of the LED max_brightness array to 1
  HID: huion: Fix sparse warnings
  HID: usbhid: Use flag HID_DISCONNECTED when a usb device is removed
  HID: ignore jabra gn9350e
  HID: cp2112: add I2C mode
  HID: use multi input quirk for 22b9:2968
  HID: rmi: only bind the hid-rmi driver to the mouse interface of composite USB devices
  HID: rmi: check that report ids exist in the report_id_hash before accessing their size
  HID: lenovo: Add support for Compact (BT|USB) keyboard
  HID: lenovo: Don't call function in condition, show error codes
  HID: lenovo: Prepare support for adding other devices
  HID: lenovo: Rename hid-lenovo-tpkbd to hid-lenovo
  HID: huion: Handle tablets with UC-Logic vendor ID
  HID: huion: Switch to generating report descriptor
  HID: huion: Don't ignore other interfaces
  HID: huion: Use "tablet" instead of specific model
  HID: add quirk for 0x04d9:0xa096 device
  HID: i2c-hid: call the hid driver's suspend and resume callbacks
  HID: rmi: change logging level of log messages related to unexpected reports
  ...

Documentation/ABI/testing/sysfs-driver-hid-lenovo-tpkbd → Documentation/ABI/testing/sysfs-driver-hid-lenovo

@@ -4,18 +4,21 @@ Contact:	linux-input@vger.kernel.org
 Description:	This controls if mouse clicks should be generated if the trackpoint is quickly pressed. How fast this press has to be
 		is being controlled by press_speed.
 		Values are 0 or 1.
+		Applies to Thinkpad USB Keyboard with TrackPoint.
 
 What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/dragging
 Date:		July 2011
 Contact:	linux-input@vger.kernel.org
 Description:	If this setting is enabled, it is possible to do dragging by pressing the trackpoint. This requires press_to_select to be enabled.
 		Values are 0 or 1.
+		Applies to Thinkpad USB Keyboard with TrackPoint.
 
 What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/release_to_select
 Date:		July 2011
 Contact:	linux-input@vger.kernel.org
 Description:	For details regarding this setting please refer to http://www.pc.ibm.com/ww/healthycomputing/trkpntb.html
 		Values are 0 or 1.
+		Applies to Thinkpad USB Keyboard with TrackPoint.
 
 What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/select_right
 Date:		July 2011
@@ -23,16 +26,25 @@ Contact:	linux-input@vger.kernel.org
 Description:	This setting controls if the mouse click events generated by pressing the trackpoint (if press_to_select is enabled) generate
 		a left or right mouse button click.
 		Values are 0 or 1.
+		Applies to Thinkpad USB Keyboard with TrackPoint.
 
 What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/sensitivity
 Date:		July 2011
 Contact:	linux-input@vger.kernel.org
 Description:	This file contains the trackpoint sensitivity.
 		Values are decimal integers from 1 (lowest sensitivity) to 255 (highest sensitivity).
+		Applies to Thinkpad USB Keyboard with TrackPoint.
 
 What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/press_speed
 Date:		July 2011
 Contact:	linux-input@vger.kernel.org
 Description:	This setting controls how fast the trackpoint needs to be pressed to generate a mouse click if press_to_select is enabled.
 		Values are decimal integers from 1 (slowest) to 255 (fastest).
+		Applies to Thinkpad USB Keyboard with TrackPoint.
 
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/fn_lock
+Date:		July 2014
+Contact:	linux-input@vger.kernel.org
+Description:	This setting controls whether Fn Lock is enabled on the keyboard (i.e. if F1 is Mute or F1)
+		Values are 0 or 1
+		Applies to ThinkPad Compact (USB|Bluetooth) Keyboard with TrackPoint.

drivers/hid/Kconfig

@@ -331,18 +331,20 @@ config HID_LCPOWER
 	---help---
 	Support for LC-Power RC1000MCE RF remote control.
 
-config HID_LENOVO_TPKBD
-	tristate "Lenovo ThinkPad USB Keyboard with TrackPoint"
+config HID_LENOVO
+	tristate "Lenovo / Thinkpad devices"
 	depends on HID
 	select NEW_LEDS
 	select LEDS_CLASS
 	---help---
-	Support for the Lenovo ThinkPad USB Keyboard with TrackPoint.
+	Support for Lenovo devices that are not fully compliant with HID standard.
 
-	Say Y here if you have a Lenovo ThinkPad USB Keyboard with TrackPoint
-	and would like to use device-specific features like changing the
-	sensitivity of the trackpoint, using the microphone mute button or
-	controlling the mute and microphone mute LEDs.
+	Say Y if you want support for the non-compliant features of the Lenovo
+	Thinkpad standalone keyboards, e.g:
+	- ThinkPad USB Keyboard with TrackPoint (supports extra LEDs and trackpoint
+	  configuration)
+	- ThinkPad Compact Bluetooth Keyboard with TrackPoint (supports Fn keys)
+	- ThinkPad Compact USB Keyboard with TrackPoint (supports Fn keys)
 
 config HID_LOGITECH
 	tristate "Logitech devices" if EXPERT
@@ -785,7 +787,7 @@ config HID_XINMO
 	depends on HID
 	---help---
 	Support for Xin-Mo devices that are not fully compliant with the HID
-	standard. Currently only supports the Xin-Mo Dual Arcade. Say Y here
+	standard. Currently only supports the Xin-Mo Dual Arcade. Say Y here
 	if you have a Xin-Mo Dual Arcade controller.
 
 config HID_ZEROPLUS

drivers/hid/Makefile

@@ -59,7 +59,7 @@ obj-$(CONFIG_HID_KENSINGTON)	+= hid-kensington.o
 obj-$(CONFIG_HID_KEYTOUCH)	+= hid-keytouch.o
 obj-$(CONFIG_HID_KYE)		+= hid-kye.o
 obj-$(CONFIG_HID_LCPOWER)       += hid-lcpower.o
-obj-$(CONFIG_HID_LENOVO_TPKBD)	+= hid-lenovo-tpkbd.o
+obj-$(CONFIG_HID_LENOVO)	+= hid-lenovo.o
 obj-$(CONFIG_HID_LOGITECH)	+= hid-logitech.o
 obj-$(CONFIG_HID_LOGITECH_DJ)	+= hid-logitech-dj.o
 obj-$(CONFIG_HID_MAGICMOUSE)    += hid-magicmouse.o

drivers/hid/hid-core.c

@@ -783,7 +783,9 @@ static int hid_scan_report(struct hid_device *hid)
 	* Vendor specific handlings
 	*/
 	if ((hid->vendor == USB_VENDOR_ID_SYNAPTICS) &&
-	    (hid->group == HID_GROUP_GENERIC))
+	    (hid->group == HID_GROUP_GENERIC) &&
+	    /* only bind to the mouse interface of composite USB devices */
+	    (hid->bus != BUS_USB || hid->type == HID_TYPE_USBMOUSE))
 		/* hid-rmi should take care of them, not hid-generic */
 		hid->group = HID_GROUP_RMI;
 
@@ -1782,7 +1784,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A070) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A072) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_HUION, USB_DEVICE_ID_HUION_580) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_HUION, USB_DEVICE_ID_HUION_TABLET) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_JESS2, USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD) },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ION, USB_DEVICE_ID_ICADE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
@@ -1796,8 +1798,10 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) },
-#if IS_ENABLED(CONFIG_HID_LENOVO_TPKBD)
+#if IS_ENABLED(CONFIG_HID_LENOVO)
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CUSBKBD) },
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CBTKBD) },
 #endif
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
@@ -2266,6 +2270,7 @@ static const struct hid_device_id hid_ignore_list[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_SPEAK_410) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_SPEAK_510) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_GN9350E) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) },

drivers/hid/hid-cp2112.c

@@ -240,8 +240,6 @@ static int cp2112_gpio_direction_output(struct gpio_chip *chip,
 	u8 buf[5];
 	int ret;
 
-	cp2112_gpio_set(chip, offset, value);
-
 	ret = hid_hw_raw_request(hdev, CP2112_GPIO_CONFIG, buf,
 				       sizeof(buf), HID_FEATURE_REPORT,
 				       HID_REQ_GET_REPORT);
@@ -260,6 +258,12 @@ static int cp2112_gpio_direction_output(struct gpio_chip *chip,
 		return ret;
 	}
 
+	/*
+	 * Set gpio value when output direction is already set,
+	 * as specified in AN495, Rev. 0.2, cpt. 4.4
+	 */
+	cp2112_gpio_set(chip, offset, value);
+
 	return 0;
 }
 
@@ -425,6 +429,105 @@ static int cp2112_write_req(void *buf, u8 slave_address, u8 command, u8 *data,
 	return data_length + 4;
 }
 
+static int cp2112_i2c_write_req(void *buf, u8 slave_address, u8 *data,
+				u8 data_length)
+{
+	struct cp2112_write_req_report *report = buf;
+
+	if (data_length > sizeof(report->data))
+		return -EINVAL;
+
+	report->report = CP2112_DATA_WRITE_REQUEST;
+	report->slave_address = slave_address << 1;
+	report->length = data_length;
+	memcpy(report->data, data, data_length);
+	return data_length + 3;
+}
+
+static int cp2112_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs,
+			   int num)
+{
+	struct cp2112_device *dev = (struct cp2112_device *)adap->algo_data;
+	struct hid_device *hdev = dev->hdev;
+	u8 buf[64];
+	ssize_t count;
+	unsigned int retries;
+	int ret;
+
+	hid_dbg(hdev, "I2C %d messages\n", num);
+
+	if (num != 1) {
+		hid_err(hdev,
+			"Multi-message I2C transactions not supported\n");
+		return -EOPNOTSUPP;
+	}
+
+	if (msgs->flags & I2C_M_RD)
+		count = cp2112_read_req(buf, msgs->addr, msgs->len);
+	else
+		count = cp2112_i2c_write_req(buf, msgs->addr, msgs->buf,
+					     msgs->len);
+
+	if (count < 0)
+		return count;
+
+	ret = hid_hw_power(hdev, PM_HINT_FULLON);
+	if (ret < 0) {
+		hid_err(hdev, "power management error: %d\n", ret);
+		return ret;
+	}
+
+	ret = cp2112_hid_output(hdev, buf, count, HID_OUTPUT_REPORT);
+	if (ret < 0) {
+		hid_warn(hdev, "Error starting transaction: %d\n", ret);
+		goto power_normal;
+	}
+
+	for (retries = 0; retries < XFER_STATUS_RETRIES; ++retries) {
+		ret = cp2112_xfer_status(dev);
+		if (-EBUSY == ret)
+			continue;
+		if (ret < 0)
+			goto power_normal;
+		break;
+	}
+
+	if (XFER_STATUS_RETRIES <= retries) {
+		hid_warn(hdev, "Transfer timed out, cancelling.\n");
+		buf[0] = CP2112_CANCEL_TRANSFER;
+		buf[1] = 0x01;
+
+		ret = cp2112_hid_output(hdev, buf, 2, HID_OUTPUT_REPORT);
+		if (ret < 0)
+			hid_warn(hdev, "Error cancelling transaction: %d\n",
+				 ret);
+
+		ret = -ETIMEDOUT;
+		goto power_normal;
+	}
+
+	if (!(msgs->flags & I2C_M_RD))
+		goto finish;
+
+	ret = cp2112_read(dev, msgs->buf, msgs->len);
+	if (ret < 0)
+		goto power_normal;
+	if (ret != msgs->len) {
+		hid_warn(hdev, "short read: %d < %d\n", ret, msgs->len);
+		ret = -EIO;
+		goto power_normal;
+	}
+
+finish:
+	/* return the number of transferred messages */
+	ret = 1;
+
+power_normal:
+	hid_hw_power(hdev, PM_HINT_NORMAL);
+	hid_dbg(hdev, "I2C transfer finished: %d\n", ret);
+	return ret;
+}
+
 static int cp2112_xfer(struct i2c_adapter *adap, u16 addr,
 		       unsigned short flags, char read_write, u8 command,
 		       int size, union i2c_smbus_data *data)
@@ -591,7 +694,8 @@ static int cp2112_xfer(struct i2c_adapter *adap, u16 addr,
 
 static u32 cp2112_functionality(struct i2c_adapter *adap)
 {
-	return I2C_FUNC_SMBUS_BYTE |
+	return I2C_FUNC_I2C |
+		I2C_FUNC_SMBUS_BYTE |
 		I2C_FUNC_SMBUS_BYTE_DATA |
 		I2C_FUNC_SMBUS_WORD_DATA |
 		I2C_FUNC_SMBUS_BLOCK_DATA |
@@ -601,6 +705,7 @@ static u32 cp2112_functionality(struct i2c_adapter *adap)
 }
 
 static const struct i2c_algorithm smbus_algorithm = {
+	.master_xfer	= cp2112_i2c_xfer,
 	.smbus_xfer	= cp2112_xfer,
 	.functionality	= cp2112_functionality,
 };

drivers/hid/hid-huion.c

@@ -2,6 +2,7 @@
  *  HID driver for Huion devices not fully compliant with HID standard
  *
  *  Copyright (c) 2013 Martin Rusko
+ *  Copyright (c) 2014 Nikolai Kondrashov
  */
 
 /*
@@ -15,15 +16,29 @@
 #include <linux/hid.h>
 #include <linux/module.h>
 #include <linux/usb.h>
+#include <asm/unaligned.h>
 #include "usbhid/usbhid.h"
 
 #include "hid-ids.h"
 
-/* Original Huion 580 report descriptor size */
-#define HUION_580_RDESC_ORIG_SIZE	177
+/* Report descriptor template placeholder head */
+#define HUION_PH_HEAD	0xFE, 0xED, 0x1D
 
-/* Fixed Huion 580 report descriptor */
-static __u8 huion_580_rdesc_fixed[] = {
+/* Report descriptor template placeholder IDs */
+enum huion_ph_id {
+	HUION_PH_ID_X_LM,
+	HUION_PH_ID_X_PM,
+	HUION_PH_ID_Y_LM,
+	HUION_PH_ID_Y_PM,
+	HUION_PH_ID_PRESSURE_LM,
+	HUION_PH_ID_NUM
+};
+
+/* Report descriptor template placeholder */
+#define HUION_PH(_ID) HUION_PH_HEAD, HUION_PH_ID_##_ID
+
+/* Fixed report descriptor template */
+static const __u8 huion_tablet_rdesc_template[] = {
 	0x05, 0x0D,             /*  Usage Page (Digitizer),                 */
 	0x09, 0x02,             /*  Usage (Pen),                            */
 	0xA1, 0x01,             /*  Collection (Application),               */
@@ -53,29 +68,37 @@ static __u8 huion_580_rdesc_fixed[] = {
 	0x55, 0xFD,             /*          Unit Exponent (-3),             */
 	0x34,                   /*          Physical Minimum (0),           */
 	0x09, 0x30,             /*          Usage (X),                      */
-	0x46, 0x40, 0x1F,   /*          Physical Maximum (8000),    */
-	0x26, 0x00, 0x7D,   /*          Logical Maximum (32000),    */
+	0x27, HUION_PH(X_LM),   /*          Logical Maximum (PLACEHOLDER),  */
+	0x47, HUION_PH(X_PM),   /*          Physical Maximum (PLACEHOLDER), */
 	0x81, 0x02,             /*          Input (Variable),               */
 	0x09, 0x31,             /*          Usage (Y),                      */
-	0x46, 0x88, 0x13,   /*          Physical Maximum (5000),    */
-	0x26, 0x20, 0x4E,   /*          Logical Maximum (20000),    */
+	0x27, HUION_PH(Y_LM),   /*          Logical Maximum (PLACEHOLDER),  */
+	0x47, HUION_PH(Y_PM),   /*          Physical Maximum (PLACEHOLDER), */
 	0x81, 0x02,             /*          Input (Variable),               */
 	0xB4,                   /*          Pop,                            */
 	0x09, 0x30,             /*          Usage (Tip Pressure),           */
-	0x26, 0xFF, 0x07,   /*          Logical Maximum (2047),     */
+	0x27,
+	HUION_PH(PRESSURE_LM),  /*          Logical Maximum (PLACEHOLDER),  */
 	0x81, 0x02,             /*          Input (Variable),               */
 	0xC0,                   /*      End Collection,                     */
 	0xC0                    /*  End Collection                          */
 };
 
+/* Driver data */
+struct huion_drvdata {
+	__u8 *rdesc;
+	unsigned int rsize;
+};
+
 static __u8 *huion_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
+	struct huion_drvdata *drvdata = hid_get_drvdata(hdev);
 	switch (hdev->product) {
-	case USB_DEVICE_ID_HUION_580:
-		if (*rsize == HUION_580_RDESC_ORIG_SIZE) {
-			rdesc = huion_580_rdesc_fixed;
-			*rsize = sizeof(huion_580_rdesc_fixed);
+	case USB_DEVICE_ID_HUION_TABLET:
+		if (drvdata->rdesc != NULL) {
+			rdesc = drvdata->rdesc;
+			*rsize = drvdata->rsize;
 		}
 		break;
 	}
@@ -83,82 +106,144 @@ static __u8 *huion_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 }
 
 /**
- * Enable fully-functional tablet mode by reading special string
- * descriptor.
+ * Enable fully-functional tablet mode and determine device parameters.
  *
  * @hdev:	HID device
- *
- * The specific string descriptor and data were discovered by sniffing
- * the Windows driver traffic.
  */
 static int huion_tablet_enable(struct hid_device *hdev)
 {
 	int rc;
-	char buf[22];
+	struct usb_device *usb_dev = hid_to_usb_dev(hdev);
+	struct huion_drvdata *drvdata = hid_get_drvdata(hdev);
+	__le16 buf[6];
 
-	rc = usb_string(hid_to_usb_dev(hdev), 0x64, buf, sizeof(buf));
-	if (rc < 0)
-		return rc;
+	/*
+	 * Read string descriptor containing tablet parameters. The specific
+	 * string descriptor and data were discovered by sniffing the Windows
+	 * driver traffic.
+	 * NOTE: This enables fully-functional tablet mode.
+	 */
+	rc = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0),
+				USB_REQ_GET_DESCRIPTOR, USB_DIR_IN,
+				(USB_DT_STRING << 8) + 0x64,
+				0x0409, buf, sizeof(buf),
+				USB_CTRL_GET_TIMEOUT);
+	if (rc == -EPIPE)
+		hid_warn(hdev, "device parameters not found\n");
+	else if (rc < 0)
+		hid_warn(hdev, "failed to get device parameters: %d\n", rc);
+	else if (rc != sizeof(buf))
+		hid_warn(hdev, "invalid device parameters\n");
+	else {
+		s32 params[HUION_PH_ID_NUM];
+		s32 resolution;
+		__u8 *p;
+		s32 v;
+
+		/* Extract device parameters */
+		params[HUION_PH_ID_X_LM] = le16_to_cpu(buf[1]);
+		params[HUION_PH_ID_Y_LM] = le16_to_cpu(buf[2]);
+		params[HUION_PH_ID_PRESSURE_LM] = le16_to_cpu(buf[4]);
+		resolution = le16_to_cpu(buf[5]);
+		if (resolution == 0) {
+			params[HUION_PH_ID_X_PM] = 0;
+			params[HUION_PH_ID_Y_PM] = 0;
+		} else {
+			params[HUION_PH_ID_X_PM] = params[HUION_PH_ID_X_LM] *
+							1000 / resolution;
+			params[HUION_PH_ID_Y_PM] = params[HUION_PH_ID_Y_LM] *
+							1000 / resolution;
+		}
+
+		/* Allocate fixed report descriptor */
+		drvdata->rdesc = devm_kmalloc(&hdev->dev,
+					sizeof(huion_tablet_rdesc_template),
+					GFP_KERNEL);
+		if (drvdata->rdesc == NULL) {
+			hid_err(hdev, "failed to allocate fixed rdesc\n");
+			return -ENOMEM;
+		}
+		drvdata->rsize = sizeof(huion_tablet_rdesc_template);
+
+		/* Format fixed report descriptor */
+		memcpy(drvdata->rdesc, huion_tablet_rdesc_template,
+			drvdata->rsize);
+		for (p = drvdata->rdesc;
+		     p <= drvdata->rdesc + drvdata->rsize - 4;) {
+			if (p[0] == 0xFE && p[1] == 0xED && p[2] == 0x1D &&
+			    p[3] < sizeof(params)) {
+				v = params[p[3]];
+				put_unaligned(cpu_to_le32(v), (s32 *)p);
+				p += 4;
+			} else {
+				p++;
+			}
+		}
+	}
 
 	return 0;
 }
 
 static int huion_probe(struct hid_device *hdev, const struct hid_device_id *id)
 {
-	int ret;
+	int rc;
 	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
+	struct huion_drvdata *drvdata;
+
+	/* Allocate and assign driver data */
+	drvdata = devm_kzalloc(&hdev->dev, sizeof(*drvdata), GFP_KERNEL);
+	if (drvdata == NULL) {
+		hid_err(hdev, "failed to allocate driver data\n");
+		return -ENOMEM;
+	}
+	hid_set_drvdata(hdev, drvdata);
 
-	/* Ignore interfaces 1 (mouse) and 2 (keyboard) for Huion 580 tablet,
-	 * as they are not used
-	 */
 	switch (id->product) {
-	case USB_DEVICE_ID_HUION_580:
-		if (intf->cur_altsetting->desc.bInterfaceNumber != 0x00)
-			return -ENODEV;
+	case USB_DEVICE_ID_HUION_TABLET:
+		/* If this is the pen interface */
+		if (intf->cur_altsetting->desc.bInterfaceNumber == 0) {
+			rc = huion_tablet_enable(hdev);
+			if (rc) {
+				hid_err(hdev, "tablet enabling failed\n");
+				return rc;
+			}
+		}
 		break;
 	}
 
-	ret = hid_parse(hdev);
-	if (ret) {
+	rc = hid_parse(hdev);
+	if (rc) {
 		hid_err(hdev, "parse failed\n");
-		goto err;
+		return rc;
 	}
 
-	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
-	if (ret) {
+	rc = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+	if (rc) {
 		hid_err(hdev, "hw start failed\n");
-		goto err;
-	}
-
-	switch (id->product) {
-	case USB_DEVICE_ID_HUION_580:
-		ret = huion_tablet_enable(hdev);
-		if (ret) {
-			hid_err(hdev, "tablet enabling failed\n");
-			goto enabling_err;
-		}
-		break;
+		return rc;
 	}
 
 	return 0;
-enabling_err:
-	hid_hw_stop(hdev);
-err:
-	return ret;
 }
 
 static int huion_raw_event(struct hid_device *hdev, struct hid_report *report,
 			u8 *data, int size)
 {
-	/* If this is a pen input report then invert the in-range bit */
-	if (report->type == HID_INPUT_REPORT && report->id == 0x07 && size >= 2)
+	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
+
+	/* If this is a pen input report */
+	if (intf->cur_altsetting->desc.bInterfaceNumber == 0 &&
+	    report->type == HID_INPUT_REPORT &&
+	    report->id == 0x07 && size >= 2)
+		/* Invert the in-range bit */
 		data[1] ^= 0x40;
 
 	return 0;
 }
 
 static const struct hid_device_id huion_devices[] = {
-	{ HID_USB_DEVICE(USB_VENDOR_ID_HUION, USB_DEVICE_ID_HUION_580) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_HUION, USB_DEVICE_ID_HUION_TABLET) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_HUION_TABLET) },
 	{ }
 };
 MODULE_DEVICE_TABLE(hid, huion_devices);

drivers/hid/hid-hyperv.c

@@ -308,6 +308,9 @@ static void mousevsc_on_receive(struct hv_device *device,
 		memcpy(input_dev->input_buf, input_report->buffer, len);
 		hid_input_report(input_dev->hid_device, HID_INPUT_REPORT,
 				 input_dev->input_buf, len, 1);
+
+		pm_wakeup_event(&input_dev->device->device, 0);
+
 		break;
 	default:
 		pr_err("unsupported hid msg type - type %d len %d",
@@ -549,6 +552,8 @@ static int mousevsc_probe(struct hv_device *device,
 		goto probe_err2;
 	}
 
+	device_init_wakeup(&device->device, true);
+
 	input_dev->connected = true;
 	input_dev->init_complete = true;
 
@@ -571,6 +576,7 @@ static int mousevsc_remove(struct hv_device *dev)
 {
 	struct mousevsc_dev *input_dev = hv_get_drvdata(dev);
 
+	device_init_wakeup(&dev->device, false);
 	vmbus_close(dev->channel);
 	hid_hw_stop(input_dev->hid_device);
 	hid_destroy_device(input_dev->hid_device);

drivers/hid/hid-ids.h

@@ -448,7 +448,7 @@
 #define USB_DEVICE_ID_UGCI_FIGHTING	0x0030
 
 #define USB_VENDOR_ID_HUION		0x256c
-#define USB_DEVICE_ID_HUION_580		0x006e
+#define USB_DEVICE_ID_HUION_TABLET	0x006e
 
 #define USB_VENDOR_ID_IDEACOM		0x1cb6
 #define USB_DEVICE_ID_IDEACOM_IDC6650	0x6650
@@ -479,6 +479,7 @@
 #define USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A070	0xa070
 #define USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A072	0xa072
 #define USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081	0xa081
+#define USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD_A096	0xa096
 
 #define USB_VENDOR_ID_IMATION		0x0718
 #define USB_DEVICE_ID_DISC_STAKKA	0xd000
@@ -489,6 +490,7 @@
 #define USB_VENDOR_ID_JABRA		0x0b0e
 #define USB_DEVICE_ID_JABRA_SPEAK_410	0x0412
 #define USB_DEVICE_ID_JABRA_SPEAK_510	0x0420
+#define USB_DEVICE_ID_JABRA_GN9350E	0x9350
 
 #define USB_VENDOR_ID_JESS		0x0c45
 #define USB_DEVICE_ID_JESS_YUREX	0x1010
@@ -561,6 +563,8 @@
 
 #define USB_VENDOR_ID_LENOVO		0x17ef
 #define USB_DEVICE_ID_LENOVO_TPKBD	0x6009
+#define USB_DEVICE_ID_LENOVO_CUSBKBD	0x6047
+#define USB_DEVICE_ID_LENOVO_CBTKBD	0x6048
 
 #define USB_VENDOR_ID_LG		0x1fd2
 #define USB_DEVICE_ID_LG_MULTITOUCH	0x0064

drivers/hid/hid-picolcd_debugfs.c

@@ -883,15 +883,12 @@ void picolcd_exit_devfs(struct picolcd_data *data)
 
 	dent = data->debug_reset;
 	data->debug_reset = NULL;
-	if (dent)
 	debugfs_remove(dent);
 	dent = data->debug_eeprom;
 	data->debug_eeprom = NULL;
-	if (dent)
 	debugfs_remove(dent);
 	dent = data->debug_flash;
 	data->debug_flash = NULL;
-	if (dent)
 	debugfs_remove(dent);
 	mutex_destroy(&data->mutex_flash);
 }

drivers/hid/hid-rmi.c

@@ -377,7 +377,7 @@ static int rmi_input_event(struct hid_device *hdev, u8 *data, int size)
 	irq_mask |= hdata->f30.irq_mask;
 
 	if (data[1] & ~irq_mask)
-		hid_warn(hdev, "unknown intr source:%02lx %s:%d\n",
+		hid_dbg(hdev, "unknown intr source:%02lx %s:%d\n",
 			data[1] & ~irq_mask, __FILE__, __LINE__);
 
 	if (hdata->f11.interrupt_base < hdata->f30.interrupt_base) {
@@ -400,7 +400,7 @@ static int rmi_read_data_event(struct hid_device *hdev, u8 *data, int size)
 	struct rmi_data *hdata = hid_get_drvdata(hdev);
 
 	if (!test_bit(RMI_READ_REQUEST_PENDING, &hdata->flags)) {
-		hid_err(hdev, "no read request pending\n");
+		hid_dbg(hdev, "no read request pending\n");
 		return 0;
 	}
 
@@ -549,10 +549,12 @@ static int rmi_populate_f11(struct hid_device *hdev)
 	u8 buf[20];
 	int ret;
 	bool has_query9;
-	bool has_query10;
+	bool has_query10 = false;
 	bool has_query11;
 	bool has_query12;
 	bool has_physical_props;
+	bool has_gestures;
+	bool has_rel;
 	unsigned x_size, y_size;
 	u16 query12_offset;
 
@@ -589,19 +591,32 @@ static int rmi_populate_f11(struct hid_device *hdev)
 		return -ENODEV;
 	}
 
+	has_rel = !!(buf[0] & BIT(3));
+	has_gestures = !!(buf[0] & BIT(5));
+
+	if (has_gestures) {
 		/* query 8 to find out if query 10 exists */
 		ret = rmi_read(hdev, data->f11.query_base_addr + 8, buf);
 		if (ret) {
-		hid_err(hdev, "can not read gesture information: %d.\n", ret);
+			hid_err(hdev, "can not read gesture information: %d.\n",
+				ret);
 			return ret;
 		}
 		has_query10 = !!(buf[0] & BIT(2));
+	}
 
 	/*
-	 * At least 8 queries are guaranteed to be present in F11
-	 * +1 for query12.
+	 * At least 4 queries are guaranteed to be present in F11
+	 * +1 for query 5 which is present since absolute events are
+	 * reported and +1 for query 12.
 	 */
-	query12_offset = 9;
+	query12_offset = 6;
+
+	if (has_rel)
+		++query12_offset; /* query 6 is present */
+
+	if (has_gestures)
+		query12_offset += 2; /* query 7 and 8 are present */
 
 	if (has_query9)
 		++query12_offset;
@@ -833,6 +848,8 @@ static int rmi_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	struct rmi_data *data = NULL;
 	int ret;
 	size_t alloc_size;
+	struct hid_report *input_report;
+	struct hid_report *output_report;
 
 	data = devm_kzalloc(&hdev->dev, sizeof(struct rmi_data), GFP_KERNEL);
 	if (!data)
@@ -851,11 +868,25 @@ static int rmi_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		return ret;
 	}
 
-	data->input_report_size = (hdev->report_enum[HID_INPUT_REPORT]
-		.report_id_hash[RMI_ATTN_REPORT_ID]->size >> 3)
-		+ 1 /* report id */;
-	data->output_report_size = (hdev->report_enum[HID_OUTPUT_REPORT]
-		.report_id_hash[RMI_WRITE_REPORT_ID]->size >> 3)
+	input_report = hdev->report_enum[HID_INPUT_REPORT]
+			.report_id_hash[RMI_ATTN_REPORT_ID];
+	if (!input_report) {
+		hid_err(hdev, "device does not have expected input report\n");
+		ret = -ENODEV;
+		return ret;
+	}
+
+	data->input_report_size = (input_report->size >> 3) + 1 /* report id */;
+
+	output_report = hdev->report_enum[HID_OUTPUT_REPORT]
+			.report_id_hash[RMI_WRITE_REPORT_ID];
+	if (!output_report) {
+		hid_err(hdev, "device does not have expected output report\n");
+		ret = -ENODEV;
+		return ret;
+	}
+
+	data->output_report_size = (output_report->size >> 3)
 					+ 1 /* report id */;
 
 	alloc_size = data->output_report_size + data->input_report_size;

drivers/hid/hid-roccat-lua.c

@@ -61,7 +61,7 @@ static ssize_t lua_sysfs_write(struct file *fp, struct kobject *kobj,
 		return -EINVAL;
 
 	mutex_lock(&lua->lua_lock);
-	retval = roccat_common2_send(usb_dev, command, (void *)buf, real_size);
+	retval = roccat_common2_send(usb_dev, command, buf, real_size);
 	mutex_unlock(&lua->lua_lock);
 
 	return retval ? retval : real_size;

drivers/hid/hid-sony.c

@@ -56,32 +56,81 @@
 
 #define MAX_LEDS 4
 
-static const u8 sixaxis_rdesc_fixup[] = {
-	0x95, 0x13, 0x09, 0x01, 0x81, 0x02, 0x95, 0x0C,
-	0x81, 0x01, 0x75, 0x10, 0x95, 0x04, 0x26, 0xFF,
-	0x03, 0x46, 0xFF, 0x03, 0x09, 0x01, 0x81, 0x02
-};
-
-static const u8 sixaxis_rdesc_fixup2[] = {
-	0x05, 0x01, 0x09, 0x04, 0xa1, 0x01, 0xa1, 0x02,
-	0x85, 0x01, 0x75, 0x08, 0x95, 0x01, 0x15, 0x00,
-	0x26, 0xff, 0x00, 0x81, 0x03, 0x75, 0x01, 0x95,
-	0x13, 0x15, 0x00, 0x25, 0x01, 0x35, 0x00, 0x45,
-	0x01, 0x05, 0x09, 0x19, 0x01, 0x29, 0x13, 0x81,
-	0x02, 0x75, 0x01, 0x95, 0x0d, 0x06, 0x00, 0xff,
-	0x81, 0x03, 0x15, 0x00, 0x26, 0xff, 0x00, 0x05,
-	0x01, 0x09, 0x01, 0xa1, 0x00, 0x75, 0x08, 0x95,
-	0x04, 0x35, 0x00, 0x46, 0xff, 0x00, 0x09, 0x30,
-	0x09, 0x31, 0x09, 0x32, 0x09, 0x35, 0x81, 0x02,
-	0xc0, 0x05, 0x01, 0x95, 0x13, 0x09, 0x01, 0x81,
-	0x02, 0x95, 0x0c, 0x81, 0x01, 0x75, 0x10, 0x95,
-	0x04, 0x26, 0xff, 0x03, 0x46, 0xff, 0x03, 0x09,
-	0x01, 0x81, 0x02, 0xc0, 0xa1, 0x02, 0x85, 0x02,
-	0x75, 0x08, 0x95, 0x30, 0x09, 0x01, 0xb1, 0x02,
-	0xc0, 0xa1, 0x02, 0x85, 0xee, 0x75, 0x08, 0x95,
-	0x30, 0x09, 0x01, 0xb1, 0x02, 0xc0, 0xa1, 0x02,
-	0x85, 0xef, 0x75, 0x08, 0x95, 0x30, 0x09, 0x01,
-	0xb1, 0x02, 0xc0, 0xc0,
+static __u8 sixaxis_rdesc[] = {
+	0x05, 0x01,         /*  Usage Page (Desktop),               */
+	0x09, 0x04,         /*  Usage (Joystik),                    */
+	0xA1, 0x01,         /*  Collection (Application),           */
+	0xA1, 0x02,         /*      Collection (Logical),           */
+	0x85, 0x01,         /*          Report ID (1),              */
+	0x75, 0x08,         /*          Report Size (8),            */
+	0x95, 0x01,         /*          Report Count (1),           */
+	0x15, 0x00,         /*          Logical Minimum (0),        */
+	0x26, 0xFF, 0x00,   /*          Logical Maximum (255),      */
+	0x81, 0x03,         /*          Input (Constant, Variable), */
+	0x75, 0x01,         /*          Report Size (1),            */
+	0x95, 0x13,         /*          Report Count (19),          */
+	0x15, 0x00,         /*          Logical Minimum (0),        */
+	0x25, 0x01,         /*          Logical Maximum (1),        */
+	0x35, 0x00,         /*          Physical Minimum (0),       */
+	0x45, 0x01,         /*          Physical Maximum (1),       */
+	0x05, 0x09,         /*          Usage Page (Button),        */
+	0x19, 0x01,         /*          Usage Minimum (01h),        */
+	0x29, 0x13,         /*          Usage Maximum (13h),        */
+	0x81, 0x02,         /*          Input (Variable),           */
+	0x75, 0x01,         /*          Report Size (1),            */
+	0x95, 0x0D,         /*          Report Count (13),          */
+	0x06, 0x00, 0xFF,   /*          Usage Page (FF00h),         */
+	0x81, 0x03,         /*          Input (Constant, Variable), */
+	0x15, 0x00,         /*          Logical Minimum (0),        */
+	0x26, 0xFF, 0x00,   /*          Logical Maximum (255),      */
+	0x05, 0x01,         /*          Usage Page (Desktop),       */
+	0x09, 0x01,         /*          Usage (Pointer),            */
+	0xA1, 0x00,         /*          Collection (Physical),      */
+	0x75, 0x08,         /*              Report Size (8),        */
+	0x95, 0x04,         /*              Report Count (4),       */
+	0x35, 0x00,         /*              Physical Minimum (0),   */
+	0x46, 0xFF, 0x00,   /*              Physical Maximum (255), */
+	0x09, 0x30,         /*              Usage (X),              */
+	0x09, 0x31,         /*              Usage (Y),              */
+	0x09, 0x32,         /*              Usage (Z),              */
+	0x09, 0x35,         /*              Usage (Rz),             */
+	0x81, 0x02,         /*              Input (Variable),       */
+	0xC0,               /*          End Collection,             */
+	0x05, 0x01,         /*          Usage Page (Desktop),       */
+	0x95, 0x13,         /*          Report Count (19),          */
+	0x09, 0x01,         /*          Usage (Pointer),            */
+	0x81, 0x02,         /*          Input (Variable),           */
+	0x95, 0x0C,         /*          Report Count (12),          */
+	0x81, 0x01,         /*          Input (Constant),           */
+	0x75, 0x10,         /*          Report Size (16),           */
+	0x95, 0x04,         /*          Report Count (4),           */
+	0x26, 0xFF, 0x03,   /*          Logical Maximum (1023),     */
+	0x46, 0xFF, 0x03,   /*          Physical Maximum (1023),    */
+	0x09, 0x01,         /*          Usage (Pointer),            */
+	0x81, 0x02,         /*          Input (Variable),           */
+	0xC0,               /*      End Collection,                 */
+	0xA1, 0x02,         /*      Collection (Logical),           */
+	0x85, 0x02,         /*          Report ID (2),              */
+	0x75, 0x08,         /*          Report Size (8),            */
+	0x95, 0x30,         /*          Report Count (48),          */
+	0x09, 0x01,         /*          Usage (Pointer),            */
+	0xB1, 0x02,         /*          Feature (Variable),         */
+	0xC0,               /*      End Collection,                 */
+	0xA1, 0x02,         /*      Collection (Logical),           */
+	0x85, 0xEE,         /*          Report ID (238),            */
+	0x75, 0x08,         /*          Report Size (8),            */
+	0x95, 0x30,         /*          Report Count (48),          */
+	0x09, 0x01,         /*          Usage (Pointer),            */
+	0xB1, 0x02,         /*          Feature (Variable),         */
+	0xC0,               /*      End Collection,                 */
+	0xA1, 0x02,         /*      Collection (Logical),           */
+	0x85, 0xEF,         /*          Report ID (239),            */
+	0x75, 0x08,         /*          Report Size (8),            */
+	0x95, 0x30,         /*          Report Count (48),          */
+	0x09, 0x01,         /*          Usage (Pointer),            */
+	0xB1, 0x02,         /*          Feature (Variable),         */
+	0xC0,               /*      End Collection,                 */
+	0xC0                /*  End Collection                      */
 };
 
 /*
@@ -778,6 +827,13 @@ struct sony_sc {
 	__u8 led_count;
 };
 
+static __u8 *sixaxis_fixup(struct hid_device *hdev, __u8 *rdesc,
+			     unsigned int *rsize)
+{
+	*rsize = sizeof(sixaxis_rdesc);
+	return sixaxis_rdesc;
+}
+
 static __u8 *ps3remote_fixup(struct hid_device *hdev, __u8 *rdesc,
 			     unsigned int *rsize)
 {
@@ -819,8 +875,6 @@ static int ps3remote_mapping(struct hid_device *hdev, struct hid_input *hi,
 	return 1;
 }
 
-
-/* Sony Vaio VGX has wrongly mouse pointer declared as constant */
 static __u8 *sony_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
@@ -857,20 +911,8 @@ static __u8 *sony_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		*rsize = sizeof(dualshock4_bt_rdesc);
 	}
 
-	/* The HID descriptor exposed over BT has a trailing zero byte */
-	if ((((sc->quirks & SIXAXIS_CONTROLLER_USB) && *rsize == 148) ||
-			((sc->quirks & SIXAXIS_CONTROLLER_BT) && *rsize == 149)) &&
-			rdesc[83] == 0x75) {
-		hid_info(hdev, "Fixing up Sony Sixaxis report descriptor\n");
-		memcpy((void *)&rdesc[83], (void *)&sixaxis_rdesc_fixup,
-			sizeof(sixaxis_rdesc_fixup));
-	} else if (sc->quirks & SIXAXIS_CONTROLLER_USB &&
-		   *rsize > sizeof(sixaxis_rdesc_fixup2)) {
-		hid_info(hdev, "Sony Sixaxis clone detected. Using original report descriptor (size: %d clone; %d new)\n",
-			 *rsize, (int)sizeof(sixaxis_rdesc_fixup2));
-		*rsize = sizeof(sixaxis_rdesc_fixup2);
-		memcpy(rdesc, &sixaxis_rdesc_fixup2, *rsize);
-	}
+	if (sc->quirks & SIXAXIS_CONTROLLER)
+		return sixaxis_fixup(hdev, rdesc, rsize);
 
 	if (sc->quirks & PS3REMOTE)
 		return ps3remote_fixup(hdev, rdesc, rsize);
@@ -1307,7 +1349,7 @@ static int sony_leds_init(struct sony_sc *sc)
 	static const char * const ds4_name_str[] = { "red", "green", "blue",
 						  "global" };
 	__u8 initial_values[MAX_LEDS] = { 0 };
-	__u8 max_brightness[MAX_LEDS] = { 1 };
+	__u8 max_brightness[MAX_LEDS] = { [0 ... (MAX_LEDS - 1)] = 1 };
 	__u8 use_hw_blink[MAX_LEDS] = { 0 };
 
 	BUG_ON(!(sc->quirks & SONY_LED_SUPPORT));
@@ -1830,9 +1872,7 @@ static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
 
 	if (sc->quirks & VAIO_RDESC_CONSTANT)
 		connect_mask |= HID_CONNECT_HIDDEV_FORCE;
-	else if (sc->quirks & SIXAXIS_CONTROLLER_USB)
-		connect_mask |= HID_CONNECT_HIDDEV_FORCE;
-	else if (sc->quirks & SIXAXIS_CONTROLLER_BT)
+	else if (sc->quirks & SIXAXIS_CONTROLLER)
 		connect_mask |= HID_CONNECT_HIDDEV_FORCE;
 
 	ret = hid_hw_start(hdev, connect_mask);

drivers/hid/i2c-hid/i2c-hid.c

@@ -1054,21 +1054,29 @@ static int i2c_hid_remove(struct i2c_client *client)
 static int i2c_hid_suspend(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);
+	struct i2c_hid *ihid = i2c_get_clientdata(client);
+	struct hid_device *hid = ihid->hid;
+	int ret = 0;
 
 	disable_irq(client->irq);
 	if (device_may_wakeup(&client->dev))
 		enable_irq_wake(client->irq);
 
+	if (hid->driver && hid->driver->suspend)
+		ret = hid->driver->suspend(hid, PMSG_SUSPEND);
+
 	/* Save some power */
 	i2c_hid_set_power(client, I2C_HID_PWR_SLEEP);
 
-	return 0;
+	return ret;
 }
 
 static int i2c_hid_resume(struct device *dev)
 {
 	int ret;
 	struct i2c_client *client = to_i2c_client(dev);
+	struct i2c_hid *ihid = i2c_get_clientdata(client);
+	struct hid_device *hid = ihid->hid;
 
 	enable_irq(client->irq);
 	ret = i2c_hid_hwreset(client);
@@ -1078,6 +1086,11 @@ static int i2c_hid_resume(struct device *dev)
 	if (device_may_wakeup(&client->dev))
 		disable_irq_wake(client->irq);
 
+	if (hid->driver && hid->driver->reset_resume) {
+		ret = hid->driver->reset_resume(hid);
+		return ret;
+	}
+
 	return 0;
 }
 #endif

drivers/hid/usbhid/hid-core.c

@@ -58,7 +58,7 @@ module_param_named(ignoreled, ignoreled, uint, 0644);
 MODULE_PARM_DESC(ignoreled, "Autosuspend with active leds");
 
 /* Quirks specified at module load time */
-static char *quirks_param[MAX_USBHID_BOOT_QUIRKS] = { [ 0 ... (MAX_USBHID_BOOT_QUIRKS - 1) ] = NULL };
+static char *quirks_param[MAX_USBHID_BOOT_QUIRKS];
 module_param_array_named(quirks, quirks_param, charp, NULL, 0444);
 MODULE_PARM_DESC(quirks, "Add/modify USB HID quirks by specifying "
 		" quirks=vendorID:productID:quirks"
@@ -536,7 +536,8 @@ static void __usbhid_submit_report(struct hid_device *hid, struct hid_report *re
 	int head;
 	struct usbhid_device *usbhid = hid->driver_data;
 
-	if ((hid->quirks & HID_QUIRK_NOGET) && dir == USB_DIR_IN)
+	if (((hid->quirks & HID_QUIRK_NOGET) && dir == USB_DIR_IN) ||
+		test_bit(HID_DISCONNECTED, &usbhid->iofl))
 		return;
 
 	if (usbhid->urbout && dir == USB_DIR_OUT && report->type == HID_OUTPUT_REPORT) {
@@ -1366,6 +1367,9 @@ static void usbhid_disconnect(struct usb_interface *intf)
 		return;
 
 	usbhid = hid->driver_data;
+	spin_lock_irq(&usbhid->lock);	/* Sync with error and led handlers */
+	set_bit(HID_DISCONNECTED, &usbhid->iofl);
+	spin_unlock_irq(&usbhid->lock);
 	hid_destroy_device(hid);
 	kfree(usbhid);
 }

drivers/hid/usbhid/hid-quirks.c

@@ -124,6 +124,7 @@ static const struct hid_blacklist {
 	{ USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_HD, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_QUAD_HD, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_TP_V103, HID_QUIRK_NO_INIT_REPORTS },
+	{ USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD_A096, HID_QUIRK_NO_INIT_INPUT_REPORTS },
 
 	{ 0, 0 }
 };

include/linux/hid.h

@@ -167,6 +167,7 @@ struct hid_item {
 #define HID_UP_MSVENDOR		0xff000000
 #define HID_UP_CUSTOM		0x00ff0000
 #define HID_UP_LOGIVENDOR	0xffbc0000
+#define HID_UP_LNVENDOR		0xffa00000
 #define HID_UP_SENSOR		0x00200000
 
 #define HID_USAGE		0x0000ffff