According to docs a SwID should be sent for GetProtocolVersion.
> 0x10.DeviceIndex.0x00.0x1n
where n is SwID
Signed-off-by: Andreas Bergmeier <abergmeier@xxxxxxx>
---
drivers/hid/hid-logitech-hidpp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
index a0c148a8df6c..964a523c3de7 100644
--- a/drivers/hid/hid-logitech-hidpp.c
+++ b/drivers/hid/hid-logitech-hidpp.c
@@ -896,7 +896,7 @@ static int hidpp_root_get_protocol_version(struct hidpp_device *hidpp)
ret = hidpp_send_rap_command_sync(hidpp,
HIDPP_PAGE_ROOT_IDX,
- CMD_ROOT_GET_PROTOCOL_VERSION,
+ CMD_ROOT_GET_PROTOCOL_VERSION | LINUX_KERNEL_SW_ID,
ping_data, sizeof(ping_data), &response);
if (ret == HIDPP_ERROR_INVALID_SUBID) {
--
2.34.1
