This patch creates a new header with a potential standard i2c sensor
attribute type (which simply includes an int representing the sensor
number/index) and the associated macros, SENSOR_DEVICE_ATTR to define
a static attribute and to_sensor_dev_attr to get a
sensor_device_attribute reference from an embedded device_attribute
reference.
Please see the next patch to see how these can be used.
Signed-off-by: Yani Ioannou <[email protected]>
---
i2c-sysfs.h | 37 +++++++++++++++++++++++++++++++++++++
1 files changed, 37 insertions(+)
diff -uprN -X dontdiff linux-2.6.12-rc4-sysfsdyncallback-deviceattr-update/include/linux/i2c-sysfs.h linux-2.6.12-rc4-sysfsdyncallback-deviceattr-i2c/include/linux/i2c-sysfs.h
--- linux-2.6.12-rc4-sysfsdyncallback-deviceattr-update/include/linux/i2c-sysfs.h 1969-12-31 19:00:00.000000000 -0500
+++ linux-2.6.12-rc4-sysfsdyncallback-deviceattr-i2c/include/linux/i2c-sysfs.h 2005-05-16 23:30:12.000000000 -0400
@@ -0,0 +1,37 @@
+/*
+ * i2c-sysfs.h - i2c chip driver sysfs defines
+ *
+ * Copyright (C) 2005 Yani Ioannou <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#ifndef _LINUX_I2C_SYSFS_H
+#define _LINUX_I2C_SYSFS_H
+
+struct sensor_device_attribute{
+ struct device_attribute dev_attr;
+ int index;
+};
+
+#define to_sensor_dev_attr(_dev_attr) \
+container_of(_dev_attr, struct sensor_device_attribute, dev_attr)
+
+#define SENSOR_DEVICE_ATTR(_name,_mode,_show,_store,_index) \
+struct sensor_device_attribute sensor_dev_attr_##_name = { \
+ .dev_attr=__ATTR(_name,_mode,_show,_store), \
+ .index_index, \
+}
+
+#endif /* _LINUX_I2C_SYSFS_H */
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