HID: logitech HID++: Send SwID in GetProtocolVersion

According to docs a SwID should be sent for GetProtocolVersion.
> 0x10.DeviceIndex.0x00.0x1n
where n is SwID.

Signed-off-by: Andreas Bergmeier <abergmeier@gmx.net>
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
index 71a9c25..9afbc68 100644 (file)
--- a/drivers/hid/hid-logitech-hidpp.c
+++ b/drivers/hid/hid-logitech-hidpp.c
@@ -895,7 +895,7 @@ static int hidpp_root_get_protocol_version(struct hidpp_device *hidpp)
        ret = hidpp_send_rap_command_sync(hidpp,
                        REPORT_ID_HIDPP_SHORT,
                        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) {