projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| f1918be1 HG |
1 | /* |
| 2 | * HID driver for some ITE "special" devices | |
| 3 | * Copyright (c) 2017 Hans de Goede <hdegoede@redhat.com> | |
| 4 | * | |
| 5 | * This program is free software; you can redistribute it and/or modify | |
| 6 | * it under the terms of the GNU General Public License version 2 as | |
| 7 | * published by the Free Software Foundation. | |
| 8 | */ | |
| 9 | ||
| 10 | #include <linux/device.h> | |
| 11 | #include <linux/input.h> | |
| 12 | #include <linux/hid.h> | |
| 13 | #include <linux/module.h> | |
| 14 | ||
| 15 | #include "hid-ids.h" | |
| 16 | ||
| 17 | static int ite_event(struct hid_device *hdev, struct hid_field *field, | |
| 18 | struct hid_usage *usage, __s32 value) | |
| 19 | { | |
| 20 | struct input_dev *input; | |
| 21 | ||
| 22 | if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput) | |
| 23 | return 0; | |
| 24 | ||
| 25 | input = field->hidinput->input; | |
| 26 | ||
| 27 | /* | |
| 28 | * The ITE8595 always reports 0 as value for the rfkill button. Luckily | |
| 29 | * it is the only button in its report, and it sends a report on | |
| 30 | * release only, so receiving a report means the button was pressed. | |
| 31 | */ | |
| 32 | if (usage->hid == HID_GD_RFKILL_BTN) { | |
| 33 | input_event(input, EV_KEY, KEY_RFKILL, 1); | |
| 34 | input_sync(input); | |
| 35 | input_event(input, EV_KEY, KEY_RFKILL, 0); | |
| 36 | input_sync(input); | |
| 37 | return 1; | |
| 38 | } | |
| 39 | ||
| 40 | return 0; | |
| 41 | } | |
| 42 | ||
| 43 | static const struct hid_device_id ite_devices[] = { | |
| 44 | { HID_USB_DEVICE(USB_VENDOR_ID_ITE, USB_DEVICE_ID_ITE8595) }, | |
| 45 | { } | |
| 46 | }; | |
| 47 | MODULE_DEVICE_TABLE(hid, ite_devices); | |
| 48 | ||
| 49 | static struct hid_driver ite_driver = { | |
| 50 | .name = "itetech", | |
| 51 | .id_table = ite_devices, | |
| 52 | .event = ite_event, | |
| 53 | }; | |
| 54 | module_hid_driver(ite_driver); | |
| 55 | ||
| 56 | MODULE_LICENSE("GPL"); |