linux-kernel - [PATCH] HID: sensor-hub: Enable hid core report processing for all devices

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Message-ID: <20231219231503.1506801-1-jekhor@gmail.com>
Date: Wed, 20 Dec 2023 01:15:03 +0200
From: Yauhen Kharuzhy <jekhor@...il.com>
To: linux-input@...r.kernel.org,
	linux-iio@...r.kernel.org
Cc: Daniel Thompson <daniel.thompson@...aro.org>,
	linux-kernel@...r.kernel.org,
	Jiri Kosina <jikos@...nel.org>,
	Jonathan Cameron <jic23@...nel.org>,
	Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
	Benjamin Tissoires <benjamin.tissoires@...hat.com>,
	Yauhen Kharuzhy <jekhor@...il.com>
Subject: [PATCH] HID: sensor-hub: Enable hid core report processing for all devices

After the commit 666cf30a589a ("HID: sensor-hub: Allow multi-function
sensor devices") hub devices are claimed by hidraw driver in hid_connect().
This causes stoppping of processing HID reports by hid core due to
optimization.

In such case, the hid-sensor-custom driver cannot match a known custom
sensor in hid_sensor_custom_get_known() because it try to check custom
properties which weren't filled from the report because hid core didn't
parsed it.

As result, custom sensors like hinge angle sensor and LISS sensors
don't work.

Mark the sensor hub devices claimed by some driver to avoid hidraw-related
optimizations.

Signed-off-by: Yauhen Kharuzhy <jekhor@...il.com>
---
 drivers/hid/hid-sensor-hub.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c
index 2eba152e8b90..26e93a331a51 100644
--- a/drivers/hid/hid-sensor-hub.c
+++ b/drivers/hid/hid-sensor-hub.c
@@ -632,7 +632,7 @@ static int sensor_hub_probe(struct hid_device *hdev,
 	}
 	INIT_LIST_HEAD(&hdev->inputs);

-	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT | HID_CONNECT_DRIVER);
 	if (ret) {
 		hid_err(hdev, "hw start failed\n");
 		return ret;
-- 
2.43.0