From: Simon Wood <simon@mungewell.org>
Date: Thu, 19 Nov 2015 23:42:15 +0000 (-0700)
Subject: HID: hid-logitech-hidpp: G920 remove deadzones
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=0b1804e3d6ee820303cd07fd5b9579db6110840b;p=linux-beck.git

HID: hid-logitech-hidpp: G920 remove deadzones

Ensure that the G920 is not given the default deadzones.

Signed-off-by: Simon Wood <simon@mungewell.org>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---

diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
index fc553e3f948d..f2a481125522 100644
--- a/drivers/hid/hid-logitech-hidpp.c
+++ b/drivers/hid/hid-logitech-hidpp.c
@@ -1441,6 +1441,25 @@ static int hidpp_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 	return 0;
 }
 
+static int hidpp_input_mapped(struct hid_device *hdev, struct hid_input *hi,
+		struct hid_field *field, struct hid_usage *usage,
+		unsigned long **bit, int *max)
+{
+	struct hidpp_device *hidpp = hid_get_drvdata(hdev);
+
+	/* Ensure that Logitech G920 is not given a default fuzz/flat value */
+	if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) {
+		if (usage->type == EV_ABS && (usage->code == ABS_X ||
+				usage->code == ABS_Y || usage->code == ABS_Z ||
+				usage->code == ABS_RZ)) {
+			field->application = HID_GD_MULTIAXIS;
+		}
+	}
+
+	return 0;
+}
+
+
 static void hidpp_populate_input(struct hidpp_device *hidpp,
 		struct input_dev *input, bool origin_is_hid_core)
 {
@@ -1875,6 +1894,7 @@ static struct hid_driver hidpp_driver = {
 	.raw_event = hidpp_raw_event,
 	.input_configured = hidpp_input_configured,
 	.input_mapping = hidpp_input_mapping,
+	.input_mapped = hidpp_input_mapped,
 };
 
 module_hid_driver(hidpp_driver);