From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755427AbbLBKZj (ORCPT ); Wed, 2 Dec 2015 05:25:39 -0500 Received: from mail-wm0-f43.google.com ([74.125.82.43]:37376 "EHLO mail-wm0-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752040AbbLBKZg (ORCPT ); Wed, 2 Dec 2015 05:25:36 -0500 From: Bartosz Golaszewski To: Wolfram Sang Cc: linux-i2c , LKML , Bartosz Golaszewski Subject: [RESEND PATCH v2 0/9] eeprom: at24: at24cs series serial number read Date: Wed, 2 Dec 2015 11:25:17 +0100 Message-Id: <1449051926-21918-1-git-send-email-bgolaszewski@baylibre.com> X-Mailer: git-send-email 2.1.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Chips from the at24cs EEPROM series have an additional read-only memory area containing a factory pre-programmed serial number. In order to access it, a dummy write must be executed before reading the serial number bytes. This series adds support for reading the serial number through a sysfs attribute. While we're at it: some of the patches contain readability tweaks and code organization fixes. Tested with at24cs64 and at24cs02 chips (for both 16 and 8 bit address pointers). (rebased against 4.4-rc3) v2: - protect the serial number read with a mutex v1: https://lkml.org/lkml/2015/10/20/162 Bartosz Golaszewski (9): eeprom: at24: platform_data: use BIT() macro eeprom: at24: new flag in platform_data eeprom: at24: tie up an additional address for at24cs series eeprom: at24: support reading of the serial number eeprom: at24: export the serial number through sysfs eeprom: at24: improve the device_id table readability eeprom: at24: add the at24cs series to the list of supported devices eeprom: at24: remove a reduntant if eeprom: at24: readability tweaks drivers/misc/eeprom/at24.c | 187 +++++++++++++++++++++++++++++++------ include/linux/platform_data/at24.h | 9 +- 2 files changed, 166 insertions(+), 30 deletions(-) -- 2.1.4