From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benjamin Tissoires Subject: [PATCH v2 3/7] Input: synaptics - do not retrieve the board id on old firmwares Date: Fri, 6 Feb 2015 15:04:31 -0500 Message-ID: <1423253075-23469-4-git-send-email-benjamin.tissoires@redhat.com> References: <1423253075-23469-1-git-send-email-benjamin.tissoires@redhat.com> Return-path: Received: from mx1.redhat.com ([209.132.183.28]:38776 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755381AbbBFUEq (ORCPT ); Fri, 6 Feb 2015 15:04:46 -0500 In-Reply-To: <1423253075-23469-1-git-send-email-benjamin.tissoires@redhat.com> Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: Dmitry Torokhov Cc: Andrew Duggan , Hans de Goede , Peter Hutterer , linux-input@vger.kernel.org, linux-kernel@vger.kernel.org The board id capability has been added in firmware 7.5. Cc: stable@vger.kernel.org Signed-off-by: Benjamin Tissoires --- v2: - brand new drivers/input/mouse/synaptics.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c index a033fc7..d7b2e93 100644 --- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -253,6 +253,10 @@ static int synaptics_board_id(struct psmouse *psmouse) struct synaptics_data *priv = psmouse->private; unsigned char bid[3]; + /* firmwares prior 7.5 have no board_id encoded */ + if (SYN_ID_FULL(priv->identity) < 0x705) + return 0; + if (synaptics_send_cmd(psmouse, SYN_QUE_MODES, bid)) return -1; priv->board_id = ((bid[0] & 0xfc) << 6) | bid[1]; -- 2.1.0