From mboxrd@z Thu Jan 1 00:00:00 1970 From: daniel.leung@linux.intel.com Subject: [PATCH] HID: hid-sensor-hub: do not process feature reports in raw_event Date: Thu, 21 Mar 2013 10:22:26 -0700 Message-ID: <1363886546-6517-1-git-send-email-daniel.leung@linux.intel.com> Return-path: Received: from mga09.intel.com ([134.134.136.24]:50566 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750916Ab3CURW3 (ORCPT ); Thu, 21 Mar 2013 13:22:29 -0400 Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: jkosina@suse.cz, srinivas.pandruvada@intel.com Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, Daniel Leung From: Daniel Leung In sensor_hub_raw_event(), HID feature reports are ignored but are still marked as processed. This causes the in-kernel struct not to be updated. Any non-updated fields in the feature reports are zero, and they are being sent to the device. This causes confusion in the sensor hub firmware, and some sensors are not powered up as a result. This changes the raw_event rountine to only process input reports, and let the hid core handle the incoming feature reports. The issue has been observed on Acer Iconia W700. Signed-off-by: Daniel Leung --- drivers/hid/hid-sensor-hub.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c index ca749810..3f7df68 100644 --- a/drivers/hid/hid-sensor-hub.c +++ b/drivers/hid/hid-sensor-hub.c @@ -413,7 +413,7 @@ static int sensor_hub_raw_event(struct hid_device *hdev, report->id, size, report->type); hid_dbg(hdev, "maxfield:%d\n", report->maxfield); if (report->type != HID_INPUT_REPORT) - return 1; + return 0; ptr = raw_data; ptr++; /*Skip report id*/ -- 1.8.1.5