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driver-core: Add attribute argument to class_attribute show/store

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Passing the attribute to the low level IO functions allows all kinds
of cleanups, by sharing low level IO code without requiring
an own function for every piece of data.

Also drivers can extend the attributes with own data fields
and use that in the low level function.

This makes the class attributes the same as sysdev_class attributes
and plain attributes.

This will allow further cleanups in drivers.

Full tree sweep converting all users.

Signed-off-by: Andi Kleen <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Andi Kleen 2010-01-05 12:48:07 +01:00 • committed by Greg Kroah-Hartman
commit 28812fe11a
21 changed files with 87 additions and 32 deletions
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5
drivers/uwb/driver.c
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@ -74,13 +74,16 @@
unsigned long beacon_timeout_ms = 500;
static
ssize_t beacon_timeout_ms_show(struct class *class, char *buf)
ssize_t beacon_timeout_ms_show(struct class *class,
struct class_attribute *attr,
char *buf)
{
return scnprintf(buf, PAGE_SIZE, "%lu\n", beacon_timeout_ms);
}
static
ssize_t beacon_timeout_ms_store(struct class *class,
struct class_attribute *attr,
const char *buf, size_t size)
{
unsigned long bt;