staging/iio: (iio_hwmon) Add support for sysfs name attribute (1daed9be) · Commits · 戴 / test

drivers/staging/iio/iio_hwmon.c

+10 −2

Original line number	Diff line number	Diff line
		@@ -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);