diff options
Diffstat (limited to 'drivers/staging/meilhaus/meslock.h')
-rw-r--r-- | drivers/staging/meilhaus/meslock.h | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/drivers/staging/meilhaus/meslock.h b/drivers/staging/meilhaus/meslock.h deleted file mode 100644 index f42b25c3f62..00000000000 --- a/drivers/staging/meilhaus/meslock.h +++ /dev/null @@ -1,73 +0,0 @@ -/** - * @file meslock.h - * - * @brief Provides the subdevice lock class. - * @note Copyright (C) 2006 Meilhaus Electronic GmbH (support@meilhaus.de) - * @author Guenter Gebhardt - */ - -#ifndef _MESLOCK_H_ -#define _MESLOCK_H_ - -#include <linux/spinlock.h> - -#ifdef __KERNEL__ - -/** - * @brief The subdevice lock class. - */ -typedef struct me_slock { - struct file *filep; /**< Pointer to file structure holding the subdevice. */ - int count; /**< Number of tasks which are inside the subdevice. */ - spinlock_t spin_lock; /**< Spin lock protecting the attributes from concurrent access. */ -} me_slock_t; - -/** - * @brief Tries to enter a subdevice. - * - * @param slock The subdevice lock instance. - * @param filep The file structure identifying the calling process. - * - * @return 0 on success. - */ -int me_slock_enter(struct me_slock *slock, struct file *filep); - -/** - * @brief Exits a subdevice. - * - * @param slock The subdevice lock instance. - * @param filep The file structure identifying the calling process. - * - * @return 0 on success. - */ -int me_slock_exit(struct me_slock *slock, struct file *filep); - -/** - * @brief Tries to perform a locking action on a subdevice. - * - * @param slock The subdevice lock instance. - * @param filep The file structure identifying the calling process. - * @param The action to be done. - * - * @return 0 on success. - */ -int me_slock_lock(struct me_slock *slock, struct file *filep, int lock); - -/** - * @brief Initializes a lock structure. - * - * @param slock The lock structure to initialize. - * @return 0 on success. - */ -int me_slock_init(me_slock_t * slock); - -/** - * @brief Deinitializes a lock structure. - * - * @param slock The lock structure to deinitialize. - * @return 0 on success. - */ -void me_slock_deinit(me_slock_t * slock); - -#endif -#endif |