[PATCH v4 3/3] HID: lenovo: Add note about different report numbers

From: Florian Klink
Date: Sun Feb 13 2022 - 16:56:41 EST


From: ValdikSS <iam@xxxxxxxxxxxxxxx>

Signed-off-by: Florian Klink <flokli@xxxxxxxxx>
---
drivers/hid/hid-lenovo.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/drivers/hid/hid-lenovo.c b/drivers/hid/hid-lenovo.c
index e9466ae8a9cb..9dabd6323234 100644
--- a/drivers/hid/hid-lenovo.c
+++ b/drivers/hid/hid-lenovo.c
@@ -487,6 +487,11 @@ static int lenovo_send_cmd_cptkbd(struct hid_device *hdev,
if (!buf)
return -ENOMEM;

+ /*
+ * Feature report 0x13 is used for USB,
+ * output report 0x18 is used for Bluetooth.
+ * buf[0] is ignored by hid_hw_raw_request.
+ */
buf[0] = 0x18;
buf[1] = byte2;
buf[2] = byte3;
--
2.35.1