linux-kernel - [PATCH 12/13] HID: rmi: Handle all Synaptics touchpads using hid-rmi

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Message-Id: <1480414104-8524-13-git-send-email-benjamin.tissoires@redhat.com>
Date:   Tue, 29 Nov 2016 11:08:23 +0100
From:   Benjamin Tissoires <benjamin.tissoires@...hat.com>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Jiri Kosina <jikos@...nel.org>,
        Andrew Duggan <aduggan@...aptics.com>,
        Lyude Paul <thatslyude@...il.com>,
        Nick Dyer <nick@...anahar.org>,
        Dennis Wassenberg <dennis.wassenberg@...unet.com>
Cc:     linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 12/13] HID: rmi: Handle all Synaptics touchpads using hid-rmi

From: Andrew Duggan <aduggan@...aptics.com>

With the addition of HID and F12 support in the synaptics-rmi4 driver
touchpads which had been using the hid-multitouch driver can now
be support by the synaptics-rmi4 via hid-rmi. The advantage is that
additional data can be reported from the RMI registers which is not
available in the Microsoft Precision Touchpad collection.

Signed-off-by: Andrew Duggan <aduggan@...aptics.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@...hat.com>
---
 drivers/hid/hid-core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index b43df2d..2da75d4 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -826,7 +826,8 @@ static int hid_scan_report(struct hid_device *hid)
 		hid->group = HID_GROUP_WACOM;
 		break;
 	case USB_VENDOR_ID_SYNAPTICS:
-		if (hid->group == HID_GROUP_GENERIC)
+		if (hid->group == HID_GROUP_GENERIC ||
+		    hid->group == HID_GROUP_MULTITOUCH_WIN_8)
 			if ((parser->scan_flags & HID_SCAN_FLAG_VENDOR_SPECIFIC)
 			    && (parser->scan_flags & HID_SCAN_FLAG_GD_POINTER))
 				/*
-- 
2.7.4