On 2025-09-03 23:40, Stuart wrote:
>> Can you apply this on top of the existing changes and test again?
>
> Unfortunately, no change in behaviour
Hm. It appears I may have misunderstood how this works. Please undo the
previous diff and apply the following on top instead:
diff --git a/drivers/hid/hid-logitech-dj.c b/drivers/hid/hid-logitech-dj.c
index 00a975b70f59..4ae67f32e78e 100644
--- a/drivers/hid/hid-logitech-dj.c
+++ b/drivers/hid/hid-logitech-dj.c
@@ -227,6 +227,7 @@ static const char kbd_lightspeed_1_3_descriptor[] = {
0x95, 0x08, /* Report Count (8) */
0x81, 0x02, /* Input (Data,Var) */
0x95, 0x05, /* Report Count (5) */
+ 0x85, 0x0E, /* Report ID (14) */
0x05, 0x08, /* Usage Page (LEDs) */
0x19, 0x01, /* Usage Minimum (Num Lock) */
0x29, 0x05, /* Usage Maximum (Kana) */
@@ -236,6 +237,7 @@ static const char kbd_lightspeed_1_3_descriptor[] = {
0x91, 0x03, /* Output (Const,Var,Abs) */
0x95, 0x70, /* Report Count (112) */
0x75, 0x01, /* Report Size (1) */
+ 0x85, 0x01, /* Report ID (1) */
0x05, 0x07, /* Usage Page (Kbrd/Keypad) */
0x19, 0x04, /* Usage Minimum (0x04) */
0x29, 0x73, /* Usage Maximum (0x73) */
> I forgot to mention in my original testing, I get a warning in my dmesg:
> logitech-hidpp-device 0003:046D:408E.0007:
> hidpp_root_get_protocol_version: received protocol error 0x08
I believe that is normal. If I recall correctly, it just means the
receiver had trouble identifying a device. I think it happens when the
devices paired to it disconnect/reconnect.
Can you also dump the HID report descriptors when the keyboard is
plugged in directly via USB?
