mirror of
https://github.com/openharmony/drivers_framework.git
synced 2026-07-20 19:27:49 -04:00
gonghui
51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
/*
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* Copyright (c) 2020-2021 Huawei Device Co., Ltd.
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*
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* HDF is dual licensed: you can use it either under the terms of
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* the GPL, or the BSD license, at your option.
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* See the LICENSE file in the root of this repository for complete details.
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*/
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#ifndef OSAL_CDEV_H
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#define OSAL_CDEV_H
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#include "osal_cdev_adapter.h"
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#ifndef __user
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#define __user
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#endif
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struct OsalCdev;
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struct file;
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struct OsalCdevOps {
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int64_t (*seek)(struct file* filep, int64_t offset, int whence);
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ssize_t (*read)(struct file* filep, char __user* buffer, size_t buflen, int64_t* offset);
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ssize_t (*write)(struct file* filep, const char __user* buffer, size_t buflen, int64_t* offset);
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unsigned int (*poll)(struct file* filep, poll_table* pollTable);
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long (*ioctl)(struct file* filep, unsigned int cmd, unsigned long arg);
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int (*open)(struct OsalCdev* cdev, struct file* filep);
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int (*release)(struct OsalCdev* cdev, struct file* filep);
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};
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struct OsalCdev* OsalAllocCdev(const struct OsalCdevOps* fops);
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int OsalRegisterCdev(struct OsalCdev* cdev, const char *name, unsigned int mode, void *priv);
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void OsalUnregisterCdev(struct OsalCdev* cdev);
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void OsalFreeCdev(struct OsalCdev* cdev);
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void* OsalGetCdevPriv(struct OsalCdev* cdev);
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void OsalSetFilePriv(struct file* filep, void *priv);
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void* OsalGetFilePriv(struct file* filep);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* OSAL_CDEV_H */
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/** @} */
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