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ACPI: thinkpad-acpi: add infrastructure for the sysfs device attributes

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Add infrastructure to deal with sysfs attributes and grouping, and helpers
for common sysfs parsing.  Switch driver attributes to use them.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Henrique de Moraes Holschuh
2007-04-24 11:48:14 -03:00
committed by Len Brown
parent 176750d688
commit 7252374a39
2 changed files with 102 additions and 5 deletions
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21
drivers/misc/thinkpad_acpi.h
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@@ -134,6 +134,27 @@ static int dispatch_procfs_write(struct file *file,
unsigned long count, void *data);
static char *next_cmd(char **cmds);
/* sysfs support */
struct attribute_set {
unsigned int members, max_members;
struct attribute_group group;
};
static struct attribute_set *create_attr_set(unsigned int max_members,
const char* name);
#define destroy_attr_set(_set) \
kfree(_set);
static int add_to_attr_set(struct attribute_set* s, struct attribute *attr);
static int add_many_to_attr_set(struct attribute_set* s,
struct attribute **attr,
unsigned int count);
#define register_attr_set_with_sysfs(_attr_set, _kobj) \
sysfs_create_group(_kobj, &_attr_set->group)
static void delete_attr_set(struct attribute_set* s, struct kobject *kobj);
static int parse_strtoul(const char *buf, unsigned long max,
unsigned long *value);
/* Device model */
static struct platform_device *tpacpi_pdev;
static struct class_device *tpacpi_hwmon;