mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-28 07:04:00 +08:00
f1918be1c1
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: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
57 lines
1.4 KiB
C
57 lines
1.4 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) },
|
|
{ }
|
|
};
|
|
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");
|