Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | From | Aditya Garg <> | Subject | [PATCH v3] HID: Recognize sensors with application collections | Date | Wed, 11 Jan 2023 10:07:36 +0000 |
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From: Ronald Tschalär <ronald@innovation.ch>
According to HUTRR39 logical sensor devices may be nested inside physical collections or may be specified in multiple top-level application collections (see page 59, strategies 1 and 2). However, the current code was only recognizing those with physical collections.
This issue turned up in the T2 MacBook Pros which define the ALS in a top-level application collection.
Signed-off-by: Ronald Tschalär <ronald@innovation.ch> Signed-off-by: Aditya Garg <gargaditya08@live.com> --- V2 :- Add missing signed-off-by V3 :- Avoid using language extensions drivers/hid/hid-core.c | 3 ++- drivers/hid/hid-sensor-hub.c | 6 ++++-- 2 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index bd47628da..8ff08e6c2 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -804,7 +804,8 @@ static void hid_scan_collection(struct hid_parser *parser, unsigned type) int i; if (((parser->global.usage_page << 16) == HID_UP_SENSOR) && - type == HID_COLLECTION_PHYSICAL) + (type == HID_COLLECTION_PHYSICAL || + type == HID_COLLECTION_APPLICATION)) hid->group = HID_GROUP_SENSOR_HUB; if (hid->vendor == USB_VENDOR_ID_MICROSOFT && diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c index 6abd3e2a9..83237b86c 100644 --- a/drivers/hid/hid-sensor-hub.c +++ b/drivers/hid/hid-sensor-hub.c @@ -397,7 +397,8 @@ int sensor_hub_input_get_attribute_info(struct hid_sensor_hub_device *hsdev, for (i = 0; i < report->maxfield; ++i) { field = report->field[i]; if (field->maxusage) { - if (field->physical == usage_id && + if ((field->physical == usage_id || + field->application == usage_id) && (field->logical == attr_usage_id || field->usage[0].hid == attr_usage_id) && @@ -506,7 +507,8 @@ static int sensor_hub_raw_event(struct hid_device *hdev, collection->usage); callback = sensor_hub_get_callback(hdev, - report->field[i]->physical, + report->field[i]->physical ? report->field[i]->physical : + report->field[i]->application, report->field[i]->usage[0].collection_index, &hsdev, &priv); if (!callback) { -- 2.34.1
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