c846fe9ce9
The Accutouch 2216 is reporting BTN_LEFT/BTN_MOUSE rather than BTM_TOUCH in it's capabilities, which is what user space expects a touchscreen device to report. This is causing udev to consider the device to be a "VMware's USB mouse" rather than as a touchscreen, which results in a mouse cursor being displayed in Weston. This patch adds a special driver for the device to correct the capabilities reported. Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
52 lines
1.4 KiB
C
52 lines
1.4 KiB
C
/*
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* HID driver for Elo Accutouch touchscreens
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*
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* Copyright (c) 2016, Collabora Ltd.
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* Copyright (c) 2016, General Electric Company
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*
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* based on hid-penmount.c
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* Copyright (c) 2014 Christian Gmeiner <christian.gmeiner <at> gmail.com>
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*/
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/*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*/
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#include <linux/hid.h>
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#include <linux/module.h>
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#include "hid-ids.h"
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static int accutouch_input_mapping(struct hid_device *hdev,
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struct hid_input *hi,
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struct hid_field *field,
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struct hid_usage *usage,
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unsigned long **bit, int *max)
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{
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if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
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hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
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return 1;
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}
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return 0;
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}
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static const struct hid_device_id accutouch_devices[] = {
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{ HID_USB_DEVICE(USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_ACCUTOUCH_2216) },
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{ }
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};
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MODULE_DEVICE_TABLE(hid, accutouch_devices);
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static struct hid_driver accutouch_driver = {
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.name = "hid-accutouch",
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.id_table = accutouch_devices,
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.input_mapping = accutouch_input_mapping,
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};
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module_hid_driver(accutouch_driver);
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MODULE_AUTHOR("Martyn Welch <martyn.welch@collabora.co.uk");
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MODULE_DESCRIPTION("Elo Accutouch HID TouchScreen driver");
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MODULE_LICENSE("GPL");
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