linux/drivers/net/wireless/b43legacy/rfkill.h
Stefano Brivio db9683fb19 b43legacy: rewrite and fix rfkill initialization
The rfkill subsystem doesn't like code like that
rfkill_allocate();
rfkill_register();
rfkill_unregister();
rfkill_register(); /* <- This will crash */

This sequence happens with
modprobe b43
ifconfig wlanX up
ifconfig wlanX down
ifconfig wlanX up

Fix this by always re-allocating the rfkill stuff before register.

The patch to b43 by Michael Buesch <mb@bu3sch.de> has been ported to
b43legacy.

Signed-off-by: Stefano Brivio <stefano.brivio@polimi.it>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:04:30 -08:00

60 lines
1.4 KiB
C

#ifndef B43legacy_RFKILL_H_
#define B43legacy_RFKILL_H_
struct b43legacy_wldev;
#ifdef CONFIG_B43LEGACY_RFKILL
#include <linux/rfkill.h>
#include <linux/workqueue.h>
#include <linux/input-polldev.h>
struct b43legacy_rfkill {
/* The RFKILL subsystem data structure */
struct rfkill *rfkill;
/* The poll device for the RFKILL input button */
struct input_polled_dev *poll_dev;
/* Did initialization succeed? Used for freeing. */
bool registered;
/* The unique name of this rfkill switch */
char name[sizeof("b43legacy-phy4294967295")];
};
/* The init function returns void, because we are not interested
* in failing the b43 init process when rfkill init failed. */
void b43legacy_rfkill_init(struct b43legacy_wldev *dev);
void b43legacy_rfkill_exit(struct b43legacy_wldev *dev);
char *b43legacy_rfkill_led_name(struct b43legacy_wldev *dev);
#else /* CONFIG_B43LEGACY_RFKILL */
/* No RFKILL support. */
struct b43legacy_rfkill {
/* empty */
};
static inline void b43legacy_rfkill_alloc(struct b43legacy_wldev *dev)
{
}
static inline void b43legacy_rfkill_free(struct b43legacy_wldev *dev)
{
}
static inline void b43legacy_rfkill_init(struct b43legacy_wldev *dev)
{
}
static inline void b43legacy_rfkill_exit(struct b43legacy_wldev *dev)
{
}
static inline char *b43legacy_rfkill_led_name(struct b43legacy_wldev *dev)
{
return NULL;
}
#endif /* CONFIG_B43LEGACY_RFKILL */
#endif /* B43legacy_RFKILL_H_ */