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HID: asus: ROG NKey: Ignore portion of 0x5a report

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On an Asus G513QY, of the 5 bytes in a 0x5a report, only the first byte
is a meaningful keycode. The other bytes are zeroed out or hold garbage
from the last packet sent to the keyboard.

This patch fixes up the report descriptor for this event so that the
general hid code will only process 1 byte for keycodes, avoiding
spurious key events and unmapped Asus vendor usagepage code warnings.

Signed-off-by: Josh Kilmer <srjek2@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Josh Kilmer 2022-07-28 12:51:11 -05:00 committed by Jiri Kosina
parent a5623a203c
commit 1c0cc9d11c
1 changed files with 7 additions and 0 deletions
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7
drivers/hid/hid-asus.c
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@ -1212,6 +1212,13 @@ static __u8 *asus_report_fixup(struct hid_device *hdev, __u8 *rdesc,
rdesc = new_rdesc;
}
if (drvdata->quirks & QUIRK_ROG_NKEY_KEYBOARD &&
*rsize == 331 && rdesc[190] == 0x85 && rdesc[191] == 0x5a &&
rdesc[204] == 0x95 && rdesc[205] == 0x05) {
hid_info(hdev, "Fixing up Asus N-KEY keyb report descriptor\n");
rdesc[205] = 0x01;
}
return rdesc;
}