Commit 19ca2827 authored by Niels Skou Olsen's avatar Niels Skou Olsen Committed by Jiri Kosina

HID: Add special driver for Jabra devices

Add a hid-jabra driver to the list of special drivers in hid-core. The
driver prevents vendor defined HID usages (FF00-FFFF) in Jabra devices
from being mapped to input events, that become unintended mouse events
in the X11 server.
Signed-off-by: 's avatarNiels Skou Olsen <nolsen@jabra.com>
Signed-off-by: 's avatarJiri Kosina <jkosina@suse.cz>
parent d5158e02
......@@ -396,6 +396,17 @@ config HID_ITE
---help---
Support for ITE devices not fully compliant with HID standard.
config HID_JABRA
tristate "Jabra USB HID Driver"
depends on HID
---help---
Support for Jabra USB HID devices.
Prevents mapping of vendor defined HID usages to input events. Without
this driver HID reports from Jabra devices may incorrectly be seen as
mouse button events.
Say M here if you may ever plug in a Jabra USB device.
config HID_TWINHAN
tristate "Twinhan IR remote control"
depends on HID
......
......@@ -52,6 +52,7 @@ 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-$(CONFIG_HID_JABRA) += hid-jabra.o
obj-$(CONFIG_HID_KENSINGTON) += hid-kensington.o
obj-$(CONFIG_HID_KEYTOUCH) += hid-keytouch.o
obj-$(CONFIG_HID_KYE) += hid-kye.o
......
/*
* Jabra USB HID Driver
*
* Copyright (c) 2017 Niels Skou Olsen <nolsen@jabra.com>
*/
/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*/
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
#define HID_UP_VENDOR_DEFINED_MIN 0xff000000
#define HID_UP_VENDOR_DEFINED_MAX 0xffff0000
static int jabra_input_mapping(struct hid_device *hdev,
struct hid_input *hi,
struct hid_field *field,
struct hid_usage *usage,
unsigned long **bit, int *max)
{
int is_vendor_defined =
((usage->hid & HID_USAGE_PAGE) >= HID_UP_VENDOR_DEFINED_MIN &&
(usage->hid & HID_USAGE_PAGE) <= HID_UP_VENDOR_DEFINED_MAX);
dbg_hid("hid=0x%08x appl=0x%08x coll_idx=0x%02x usage_idx=0x%02x: %s\n",
usage->hid,
field->application,
usage->collection_index,
usage->usage_index,
is_vendor_defined ? "ignored" : "defaulted");
/* Ignore vendor defined usages, default map standard usages */
return is_vendor_defined ? -1 : 0;
}
static const struct hid_device_id jabra_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_JABRA, HID_ANY_ID) },
{ }
};
MODULE_DEVICE_TABLE(hid, jabra_devices);
static struct hid_driver jabra_driver = {
.name = "jabra",
.id_table = jabra_devices,
.input_mapping = jabra_input_mapping,
};
module_hid_driver(jabra_driver);
MODULE_AUTHOR("Niels Skou Olsen <nolsen@jabra.com>");
MODULE_DESCRIPTION("Jabra USB HID Driver");
MODULE_LICENSE("GPL");
......@@ -384,6 +384,9 @@ static const struct hid_device_id hid_have_special_driver[] = {
#if IS_ENABLED(CONFIG_HID_ICADE)
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ION, USB_DEVICE_ID_ICADE) },
#endif
#if IS_ENABLED(CONFIG_HID_JABRA)
{ HID_USB_DEVICE(USB_VENDOR_ID_JABRA, HID_ANY_ID) },
#endif
#if IS_ENABLED(CONFIG_HID_KENSINGTON)
{ HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
#endif
......
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