linux/drivers/hid/hid-ite.c
Hans de Goede 5bf2f2f331 HID: ite: Add USB id match for Acer One S1003 keyboard dock
The Acer One S1003 2-in-1 keyboard dock uses a Synaptics S910xx touchpad
which is connected to an ITE 8910 USB keyboard controller chip.

This keyboard has the same quirk for its rfkill / airplane mode hotkey as
other keyboards with ITE keyboard chips, it only sends a single release
event when pressed and released, it never sends a press event.

This commit adds this keyboards USB id to the hid-ite id-table, fixing
the rfkill key not working on this keyboard. Note that like for the
Acer Aspire Switch 10 (SW5-012) the id-table entry matches on the
HID_GROUP_GENERIC generic group so that hid-ite only binds to the
keyboard interface and the mouse/touchpad interface is left untouched
so that hid-multitouch can bind to it.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2020-09-09 08:37:16 +02:00

63 lines
1.7 KiB
C

// SPDX-License-Identifier: GPL-2.0-only
/*
* HID driver for some ITE "special" devices
* Copyright (c) 2017 Hans de Goede <hdegoede@redhat.com>
*/
#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) },
{ HID_USB_DEVICE(USB_VENDOR_ID_258A, USB_DEVICE_ID_258A_6A88) },
/* ITE8595 USB kbd ctlr, with Synaptics touchpad connected to it. */
{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
USB_VENDOR_ID_SYNAPTICS,
USB_DEVICE_ID_SYNAPTICS_ACER_SWITCH5_012) },
/* ITE8910 USB kbd ctlr, with Synaptics touchpad connected to it. */
{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
USB_VENDOR_ID_SYNAPTICS,
USB_DEVICE_ID_SYNAPTICS_ACER_ONE_S1003) },
{ }
};
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");