[PATCH v16 4/4] HID: nintendo: Patch NYXI Hyperion 3 descriptor
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WARM1d
From: Vicki Pfau <vi@endrift.com>
Date: 2026-10-06 06:16:39
Subsystem:
hid core layer, nintendo hid driver, the rest · Maintainers:
Jiri Kosina, Benjamin Tissoires, Daniel J. Ogorchock, Linus Torvalds
Revision v16 of 3 in this series.
Revisions (3)
- v14 [diff vs current]
- v15 [diff vs current]
- v16 current
The HID report descriptor for the third-party NYXI Hyperion 3's right Joy-Con erroneously reports it as using the report ID for the left Joy-Con. Since it does actually send the report ID for the right Joy-Con, the HID subsystem rejects it as unknown. Here we patch it to properly report as the right Joy-Con report ID to ensure the HID subsystem passes it through properly. Signed-off-by: Vicki Pfau <vi@endrift.com> --- drivers/hid/hid-nintendo.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
diff --git a/drivers/hid/hid-nintendo.c b/drivers/hid/hid-nintendo.c
index dfbb54d04038..4d40f67f3e64 100644
--- a/drivers/hid/hid-nintendo.c
+++ b/drivers/hid/hid-nintendo.c@@ -4503,6 +4503,21 @@ static int nintendo_hid_event(struct hid_device *hdev, return joycon_event(hdev, report, raw_data, size); } +static const __u8 *nintendo_hid_report_fixup(struct hid_device *hdev, + __u8 *rdesc, unsigned int *rsize) +{ + if (hdev->vendor == USB_VENDOR_ID_NINTENDO && + hdev->product == USB_DEVICE_ID_NINTENDO_NS2_JOYCONR && + *rsize == 100 && rdesc[24] == NS2_REPORT_JCL) + /* + * The NYXI Hyperion 3 right Joy-Con accidentally reports as the + * left one. Since the HID subsystem rejects report IDs that + * aren't listed in the descriptor, we need to patch it. + */ + rdesc[24] = NS2_REPORT_JCR; + return rdesc; +} + static int nintendo_hid_probe(struct hid_device *hdev, const struct hid_device_id *id) {
@@ -4531,6 +4546,7 @@ static int nintendo_hid_suspend(struct hid_device *hdev, pm_message_t message) static struct hid_driver nintendo_hid_driver = { .name = "nintendo", .id_table = nintendo_hid_devices, + .report_fixup = nintendo_hid_report_fixup, .probe = nintendo_hid_probe, .remove = nintendo_hid_remove, .raw_event = nintendo_hid_event,
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2.54.0