add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/hid/hid-alps.c
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@@ -1,10 +1,6 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  *  Copyright (c) 2016 Masaki Ota <masaki.ota@jp.alps.com>
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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/kernel.h>
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@@ -393,8 +389,7 @@
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 				input_report_abs(hdata->input,
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 					ABS_MT_PRESSURE, z);
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 			} else {
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-				input_mt_report_slot_state(hdata->input,
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-					MT_TOOL_FINGER, 0);
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+				input_mt_report_slot_inactive(hdata->input);
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 			}
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 		}
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@@ -531,7 +526,7 @@
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 	ret = u1_read_write_register(hdev, ADDRESS_U1_NUM_SENS_Y,
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 			&sen_line_num_y, 0, true);
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-		if (ret < 0) {
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+	if (ret < 0) {
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 		dev_err(&hdev->dev, "failed U1_NUM_SENS_Y (%d)\n", ret);
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 		goto exit;
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 	}
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@@ -836,6 +831,8 @@
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 	{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY,
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 		USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_U1) },
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 	{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY,
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+		USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_U1_UNICORN_LEGACY) },
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+	{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY,
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 		USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_T4_BTNLESS) },
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 	{ }
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 };