linux/drivers/hid/hid-ite.c
Hans de Goede 4050207485 HID: ite: Add USB id match for another ITE based keyboard rfkill key quirk
The 258a:6a88 keyboard-dock shipped with the Prowise PT301 tablet is
likely another ITE based design. The controller die is directly bonded
to the PCB with a blob of black glue on top so there are no markings and
the 258a vendor-id used is unknown anywhere. But the keyboard has the
exact same hotkeys mapped to Fn+F1 - F10 as the other ITE8595 keyboard
I have *and* it has the same quirky behavior wrt the rfkill hotkey.

Either way as said this keyboard has the same quirk for its rfkill /
airplane mode hotkey as the ITE 8595 chip, it only sends a single release
event when pressed and released, it never sends a press event.

This commit adds the 258a:6a88 USB id to the hid-ite id-table, fixing
the rfkill key not working on this keyboard.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2018-11-30 14:12:07 +01:00

58 lines
1.5 KiB
C

/*
* 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) },
{ HID_USB_DEVICE(USB_VENDOR_ID_258A, USB_DEVICE_ID_258A_6A88) },
{ }
};
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");