X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=include%2Flinux%2Fsysdev.h;h=1154c29f41018561d1e6e1e58b238bc97c5e4b53;hb=HEAD;hp=8dcf3162b21b373b63f0725960c9015b46cdd2ad;hpb=4a0b2b4dbe1335b8b9886ba3dc85a145d5d938ed;p=safe%2Fjmp%2Flinux-2.6

diff --git a/include/linux/sysdev.h b/include/linux/sysdev.h
index 8dcf316..1154c29 100644
--- a/include/linux/sysdev.h
+++ b/include/linux/sysdev.h
@@ -27,10 +27,12 @@
 
 
 struct sys_device;
+struct sysdev_class_attribute;
 
 struct sysdev_class {
 	const char *name;
 	struct list_head	drivers;
+	struct sysdev_class_attribute **attrs;
 
 	/* Default operations for these types of devices */
 	int	(*shutdown)(struct sys_device *);
@@ -41,8 +43,10 @@ struct sysdev_class {
 
 struct sysdev_class_attribute {
 	struct attribute attr;
-	ssize_t (*show)(struct sysdev_class *, char *);
-	ssize_t (*store)(struct sysdev_class *, const char *, size_t);
+	ssize_t (*show)(struct sysdev_class *, struct sysdev_class_attribute *,
+			char *);
+	ssize_t (*store)(struct sysdev_class *, struct sysdev_class_attribute *,
+			 const char *, size_t);
 };
 
 #define _SYSDEV_CLASS_ATTR(_name,_mode,_show,_store) 		\
@@ -119,4 +123,51 @@ struct sysdev_attribute {
 extern int sysdev_create_file(struct sys_device *, struct sysdev_attribute *);
 extern void sysdev_remove_file(struct sys_device *, struct sysdev_attribute *);
 
+/* Create/remove NULL terminated attribute list */
+static inline int
+sysdev_create_files(struct sys_device *d, struct sysdev_attribute **a)
+{
+	return sysfs_create_files(&d->kobj, (const struct attribute **)a);
+}
+
+static inline void
+sysdev_remove_files(struct sys_device *d, struct sysdev_attribute **a)
+{
+	return sysfs_remove_files(&d->kobj, (const struct attribute **)a);
+}
+
+struct sysdev_ext_attribute {
+	struct sysdev_attribute attr;
+	void *var;
+};
+
+/*
+ * Support for simple variable sysdev attributes.
+ * The pointer to the variable is stored in a sysdev_ext_attribute
+ */
+
+/* Add more types as needed */
+
+extern ssize_t sysdev_show_ulong(struct sys_device *, struct sysdev_attribute *,
+				char *);
+extern ssize_t sysdev_store_ulong(struct sys_device *,
+			struct sysdev_attribute *, const char *, size_t);
+extern ssize_t sysdev_show_int(struct sys_device *, struct sysdev_attribute *,
+				char *);
+extern ssize_t sysdev_store_int(struct sys_device *,
+			struct sysdev_attribute *, const char *, size_t);
+
+#define _SYSDEV_ULONG_ATTR(_name, _mode, _var)				\
+	{ _SYSDEV_ATTR(_name, _mode, sysdev_show_ulong, sysdev_store_ulong), \
+	  &(_var) }
+#define SYSDEV_ULONG_ATTR(_name, _mode, _var)			\
+	struct sysdev_ext_attribute attr_##_name = 		\
+		_SYSDEV_ULONG_ATTR(_name, _mode, _var);
+#define _SYSDEV_INT_ATTR(_name, _mode, _var)				\
+	{ _SYSDEV_ATTR(_name, _mode, sysdev_show_int, sysdev_store_int), \
+	  &(_var) }
+#define SYSDEV_INT_ATTR(_name, _mode, _var)			\
+	struct sysdev_ext_attribute attr_##_name = 		\
+		_SYSDEV_INT_ATTR(_name, _mode, _var);
+
 #endif /* _SYSDEV_H_ */