From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alan Cox Subject: Re: [PATCH] Add a driver to support InvenSense mpu3050 gyroscope chip. Date: Wed, 13 Apr 2011 15:54:08 +0100 Message-ID: <20110413155408.2a1cf73a@bob.linux.org.uk> References: <20110413095049.10407.35173.stgit@localhost.localdomain> <9bf2cf8dbd98b3e026d79af99277db63.squirrel@host171.canaca.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Received: from mga14.intel.com ([143.182.124.37]:51696 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757112Ab1DMPLj (ORCPT ); Wed, 13 Apr 2011 11:11:39 -0400 In-Reply-To: <9bf2cf8dbd98b3e026d79af99277db63.squirrel@host171.canaca.com> Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: simon@mungewell.org Cc: linux-input@vger.kernel.org > Without a detailed datasheet for the MPU3050 I can't say for certain; > but usually there is another register which is set when a measurement > is taken. This can be cleared before and accessed after reading the > XYZ values to confirm that they have not been corrupted. I don't believe the datasheet for the MPU3050 is public, but it's a smart device rather than a simple interface. > Also some I2C hosts (such as the Intel SCH) don't support I2C block > read/writes, and thus the access will be broken into separate > reads/writes and be much slower. Yes - but for those that can do it in one, it's a win to do so. > Hope I'm not speaking out of turn Nope - all good points to double check. Alan