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Commit f1918be1 authored by Hans de Goede's avatar Hans de Goede Committed by Jiri Kosina
Browse files

HID: ite: Add hid-ite driver 



The ITE8595 keyboard uses the HID_GD_RFKILL_BTN usage code
from the Wireless Radio Controls Application Collection Microsoft
has defined for Windows 8 and later.

However it has a quirk, when the rfkill hotkey is pressed it does
generate a report for the collection, but the reported value is
always 0. Luckily it is the only button in this collection / report,
and it sends a report on release only, so receiving a report means the
button was pressed.

This commit adds a hid-ite driver which watches for the Wireless Radio
Controls Application Collection report and then reports a KEY_RFKILL event,
ignoring the value, making the rfkill on this keyboard work.

Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Reviewed-by: default avatarBenjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent 61df56be

drivers/hid/Kconfig

+7 −0
Original line number Diff line number Diff line
@@ -386,6 +386,13 @@ config HID_ICADE 
	To compile this driver as a module, choose M here: the

	module will be called hid-icade.



config HID_ITE

	tristate "ITE devices"

	depends on HID

	default !EXPERT

	---help---

	Support for ITE devices not fully compliant with HID standard.



config HID_TWINHAN

	tristate "Twinhan IR remote control"

	depends on HID

drivers/hid/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -50,6 +50,7 @@ obj-$(CONFIG_HID_HOLTEK) += hid-holtek-mouse.o 
obj-$(CONFIG_HID_HOLTEK)	+= hid-holtekff.o

obj-$(CONFIG_HID_HYPERV_MOUSE)	+= hid-hyperv.o

obj-$(CONFIG_HID_ICADE)		+= hid-icade.o

obj-$(CONFIG_HID_ITE)		+= hid-ite.o

obj-$(CONFIG_HID_KENSINGTON)	+= hid-kensington.o

obj-$(CONFIG_HID_KEYTOUCH)	+= hid-keytouch.o

obj-$(CONFIG_HID_KYE)		+= hid-kye.o

drivers/hid/hid-core.c

+1 −0
Original line number Diff line number Diff line
@@ -1913,6 +1913,7 @@ static const struct hid_device_id hid_have_special_driver[] = { 
	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081) },

	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A0C2) },

	{ HID_USB_DEVICE(USB_VENDOR_ID_HUION, USB_DEVICE_ID_HUION_TABLET) },

	{ HID_USB_DEVICE(USB_VENDOR_ID_ITE, USB_DEVICE_ID_ITE8595) },

	{ HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_JESS_ZEN_AIO_KBD) },

	{ 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) },

drivers/hid/hid-ids.h

+1 −0
Original line number Diff line number Diff line
@@ -559,6 +559,7 @@ 
#define USB_DEVICE_ID_ITE_LENOVO_YOGA   0x8386

#define USB_DEVICE_ID_ITE_LENOVO_YOGA2  0x8350

#define USB_DEVICE_ID_ITE_LENOVO_YOGA900	0x8396

#define USB_DEVICE_ID_ITE8595		0x8595



#define USB_VENDOR_ID_JABRA		0x0b0e

#define USB_DEVICE_ID_JABRA_SPEAK_410	0x0412

drivers/hid/hid-ite.c

0 → 100644
+56 −0
Original line number Diff line number Diff line 
/*

 * HID driver for some ITE "special" devices

 * Copyright (c) 2017 Hans de Goede <hdegoede@redhat.com>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 */



#include <linux/device.h>

#include <linux/input.h>

#include <linux/hid.h>

#include <linux/module.h>



#include "hid-ids.h"



static int ite_event(struct hid_device *hdev, struct hid_field *field,

		     struct hid_usage *usage, __s32 value)

{

	struct input_dev *input;



	if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput)

		return 0;



	input = field->hidinput->input;



	/*

	 * The ITE8595 always reports 0 as value for the rfkill button. Luckily

	 * it is the only button in its report, and it sends a report on

	 * release only, so receiving a report means the button was pressed.

	 */

	if (usage->hid == HID_GD_RFKILL_BTN) {

		input_event(input, EV_KEY, KEY_RFKILL, 1);

		input_sync(input);

		input_event(input, EV_KEY, KEY_RFKILL, 0);

		input_sync(input);

		return 1;

	}



	return 0;

}



static const struct hid_device_id ite_devices[] = {

	{ HID_USB_DEVICE(USB_VENDOR_ID_ITE, USB_DEVICE_ID_ITE8595) },

	{ }

};

MODULE_DEVICE_TABLE(hid, ite_devices);



static struct hid_driver ite_driver = {

	.name = "itetech",

	.id_table = ite_devices,

	.event = ite_event,

};

module_hid_driver(ite_driver);



MODULE_LICENSE("GPL");