From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jiada Wang Subject: [PATCH v3 19/49] Input: atmel_mxt_ts - add config checksum attribute to sysfs Date: Tue, 17 Sep 2019 18:37:36 +0900 Message-ID: <20190917093806.18538-5-jiada_wang@mentor.com> References: <20190917093806.18538-1-jiada_wang@mentor.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Return-path: In-Reply-To: <20190917093806.18538-1-jiada_wang@mentor.com> Sender: linux-kernel-owner@vger.kernel.org To: nick@shmanahar.org, dmitry.torokhov@gmail.com, jikos@kernel.org, benjamin.tissoires@redhat.com, rydberg@bitmath.org Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, jiada_wang@mentor.com List-Id: linux-input@vger.kernel.org From: karl tsou Signed-off-by: Nick Dyer (cherry picked from ndyer/linux/for-upstream commit 03477477ddbe5dcad42853ab3f84166a8f807acf) [gdavis: Forward port and fix conflicts.] Signed-off-by: George G. Davis Signed-off-by: Jiada Wang --- drivers/input/touchscreen/atmel_mxt_ts.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c index f0522f4416dc..69e34294688c 100644 --- a/drivers/input/touchscreen/atmel_mxt_ts.c +++ b/drivers/input/touchscreen/atmel_mxt_ts.c @@ -3128,6 +3128,15 @@ static int mxt_configure_objects(struct mxt_data *data, return error; } +/* Configuration crc check sum is returned as hex xxxxxx */ +static ssize_t mxt_config_crc_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct mxt_data *data = dev_get_drvdata(dev); + + return scnprintf(buf, PAGE_SIZE, "%06x\n", data->config_crc); +} + /* Firmware Version is returned as Major.Minor.Build */ static ssize_t mxt_fw_version_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -3481,12 +3490,14 @@ 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_cfg, S_IWUSR, NULL, mxt_update_cfg_store); +static DEVICE_ATTR(config_crc, S_IRUGO, mxt_config_crc_show, NULL); static struct attribute *mxt_attrs[] = { &dev_attr_fw_version.attr, &dev_attr_hw_version.attr, &dev_attr_object.attr, &dev_attr_update_cfg.attr, + &dev_attr_config_crc.attr, NULL }; -- 2.19.2