ffe51d0d8a
This patch adds a seperate hid-penmount driver to work around an issue with the HID report descriptor. The descriptor does not contain the ContactID usage and as result the touchscreen is represented as normal mouse to the system. This driver maps the button 0 emitted by the touchscreen to BTN_TOUCH. This makes it possible to use touch events in userspace. Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
/*
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* HID driver for PenMount touchscreens
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*
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* Copyright (c) 2014 Christian Gmeiner <christian.gmeiner <at> gmail.com>
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*
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* based on hid-penmount copyrighted by
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* PenMount Touch Solutions <penmount <at> seed.net.tw>
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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/module.h>
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#include <linux/hid.h>
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#include "hid-ids.h"
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static int penmount_input_mapping(struct hid_device *hdev,
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struct hid_input *hi, struct hid_field *field,
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struct hid_usage *usage, 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 penmount_devices[] = {
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{ HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT, USB_DEVICE_ID_PENMOUNT_6000) },
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{ }
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};
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MODULE_DEVICE_TABLE(hid, penmount_devices);
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static struct hid_driver penmount_driver = {
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.name = "hid-penmount",
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.id_table = penmount_devices,
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.input_mapping = penmount_input_mapping,
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};
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module_hid_driver(penmount_driver);
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MODULE_AUTHOR("Christian Gmeiner <christian.gmeiner@gmail.com>");
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MODULE_DESCRIPTION("PenMount HID TouchScreen driver");
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MODULE_LICENSE("GPL");
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