Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752982Ab2FREMR (ORCPT ); Mon, 18 Jun 2012 00:12:17 -0400 Received: from mail-vb0-f74.google.com ([209.85.212.74]:38525 "EHLO mail-vb0-f74.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751512Ab2FREIt (ORCPT ); Mon, 18 Jun 2012 00:08:49 -0400 From: Daniel Kurtz To: Dmitry Torokhov , Henrik Rydberg , Joonyoung Shim , Nick Dyer , linux-input@vger.kernel.org Cc: Iiro Valkonen , Benson Leung , Yufeng Shen , Olof Johansson , linux-kernel@vger.kernel.org, Daniel Kurtz Subject: [PATCH 16/22 v4] Input: atmel_mxt_ts - add sysfs entries to read fw and hw version Date: Mon, 18 Jun 2012 12:08:36 +0800 Message-Id: <1339992522-22073-17-git-send-email-djkurtz@chromium.org> X-Mailer: git-send-email 1.7.7.3 In-Reply-To: <1339992522-22073-1-git-send-email-djkurtz@chromium.org> References: <1339992522-22073-1-git-send-email-djkurtz@chromium.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2260 Lines: 63 Make firmware and hardware version strings available to userspace. This is useful, for example, to allow a userspace program to implement a firwmare update policy. Signed-off-by: Daniel Kurtz --- drivers/input/touchscreen/atmel_mxt_ts.c | 24 ++++++++++++++++++++++++ 1 files changed, 24 insertions(+), 0 deletions(-) diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c index 9200cf4..0d769de 100644 --- a/drivers/input/touchscreen/atmel_mxt_ts.c +++ b/drivers/input/touchscreen/atmel_mxt_ts.c @@ -863,6 +863,26 @@ static void mxt_calc_resolution(struct mxt_data *data) } } +/* Firmware Version is returned as Major.Minor.Build */ +static ssize_t mxt_fw_version_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct mxt_data *data = dev_get_drvdata(dev); + struct mxt_info *info = &data->info; + return scnprintf(buf, PAGE_SIZE, "%u.%u.%02X\n", + info->version >> 4, info->version & 0xf, info->build); +} + +/* Hardware Version is returned as FamilyID.VariantID */ +static ssize_t mxt_hw_version_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct mxt_data *data = dev_get_drvdata(dev); + struct mxt_info *info = &data->info; + return scnprintf(buf, PAGE_SIZE, "%u.%u\n", + info->family_id, info->variant_id); +} + static ssize_t mxt_object_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -1024,10 +1044,14 @@ static ssize_t mxt_update_fw_store(struct device *dev, return count; } +static DEVICE_ATTR(fw_version, S_IRUGO, mxt_fw_version_show, NULL); +static DEVICE_ATTR(hw_version, S_IRUGO, mxt_hw_version_show, NULL); static DEVICE_ATTR(object, S_IRUGO, mxt_object_show, NULL); static DEVICE_ATTR(update_fw, S_IWUSR, NULL, mxt_update_fw_store); static struct attribute *mxt_attrs[] = { + &dev_attr_fw_version.attr, + &dev_attr_hw_version.attr, &dev_attr_object.attr, &dev_attr_update_fw.attr, NULL -- 1.7.7.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/