From mboxrd@z Thu Jan 1 00:00:00 1970 From: Guenter Roeck Subject: [PATCH 02/11] staging/iio: (iio_hwmon) Add support for sysfs name attribute Date: Thu, 31 Jan 2013 13:42:59 -0800 Message-ID: <1359668588-13678-3-git-send-email-linux@roeck-us.net> References: <1359668588-13678-1-git-send-email-linux@roeck-us.net> Return-path: In-Reply-To: <1359668588-13678-1-git-send-email-linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org> Sender: linux-iio-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linux-iio-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Jonathan Cameron Cc: devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org, Naveen Krishna Chatradhi , Lars-Peter Clausen , Doug Anderson , Tomasz Figa , Grant Likely , Rob Herring , Guenter Roeck List-Id: devicetree@vger.kernel.org The 'name' attribute is mandatory for hwmon devices. Signed-off-by: Guenter Roeck --- drivers/staging/iio/iio_hwmon.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/staging/iio/iio_hwmon.c b/drivers/staging/iio/iio_hwmon.c index 5456272..7f260ea 100644 --- a/drivers/staging/iio/iio_hwmon.c +++ b/drivers/staging/iio/iio_hwmon.c @@ -55,6 +55,14 @@ static ssize_t iio_hwmon_read_val(struct device *dev, return sprintf(buf, "%d\n", result); } +static ssize_t show_name(struct device *dev, struct device_attribute *attr, + char *buf) +{ + return sprintf(buf, "iio_hwmon\n"); +} + +static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); + static int iio_hwmon_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -77,7 +85,7 @@ static int iio_hwmon_probe(struct platform_device *pdev) st->num_channels++; st->attrs = devm_kzalloc(dev, - sizeof(st->attrs) * (st->num_channels + 1), + sizeof(st->attrs) * (st->num_channels + 2), GFP_KERNEL); if (st->attrs == NULL) { ret = -ENOMEM; @@ -125,7 +133,7 @@ static int iio_hwmon_probe(struct platform_device *pdev) a->index = i; st->attrs[i] = &a->dev_attr.attr; } - + st->attrs[st->num_channels] = &dev_attr_name.attr; st->attr_group.attrs = st->attrs; platform_set_drvdata(pdev, st); ret = sysfs_create_group(&dev->kobj, &st->attr_group); -- 1.7.9.7