On Fri, 2022-11-11 at 20:45 +0100, Andreas Bergmeier wrote: > According to docs a SwID should be sent for GetProtocolVersion. > > 0x10.DeviceIndex.0x00.0x1n > where n is SwID I would mention the value of CMD_ROOT_GET_PROTOCOL_VERSION (0x10) in the commit message, but otherwise looks good to me. Reviewed-by: Bastien Nocera <hadess@xxxxxxxxxx> > > 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 >