jlaitine commented on code in PR #8000:
URL: https://github.com/apache/nuttx/pull/8000#discussion_r1059922840
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include/nuttx/fs/fs.h:
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@@ -206,16 +207,21 @@ struct file_operations
* treated like unions.
*/
- int (*close)(FAR struct file *filep);
- ssize_t (*read)(FAR struct file *filep, FAR char *buffer, size_t buflen);
- ssize_t (*write)(FAR struct file *filep, FAR const char *buffer,
- size_t buflen);
- off_t (*seek)(FAR struct file *filep, off_t offset, int whence);
- int (*ioctl)(FAR struct file *filep, int cmd, unsigned long arg);
+ int (*close)(FAR struct file *filep);
+ ssize_t (*read)(FAR struct file *filep, FAR char *buffer, size_t buflen);
+ ssize_t (*write)(FAR struct file *filep, FAR const char *buffer,
+ size_t buflen);
+ off_t (*seek)(FAR struct file *filep, off_t offset, int whence);
+ int (*ioctl)(FAR struct file *filep, int cmd, unsigned long arg);
+ int (*truncate)(FAR struct file *filep, off_t length);
+ FAR void *(*mmap)(FAR struct file *filep, off_t start, size_t length);
+ int (*munmap)(FAR struct task_group_s *group, FAR struct inode *inode,
Review Comment:
Yes, agree. It is more flexible to pass the struct. I still left also the
file pointer in the i_ops mmap call. It is something that might be needed in
the mmap phase by the driver, but not supposed to be stored. Otherwise I think
that my existing mm_map_entry_s matches quite well with your proposal, so I
kept my own.
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