jlaitine commented on code in PR #8000:
URL: https://github.com/apache/nuttx/pull/8000#discussion_r1060000941
##########
fs/romfs/fs_romfs.c:
##########
@@ -617,6 +608,35 @@ static int romfs_ioctl(FAR struct file *filep, int cmd,
unsigned long arg)
return -ENOTTY;
}
+static int romfs_mmap(FAR struct file *filep, FAR void **addr,
+ off_t start, size_t length)
+{
+ FAR struct romfs_mountpt_s *rm;
+ FAR struct romfs_file_s *rf;
+ int ret = -EINVAL;
+
+ /* Sanity checks */
+
+ DEBUGASSERT(filep->f_priv != NULL && filep->f_inode != NULL);
+
+ /* Recover our private data from the struct file instance */
+
+ rf = filep->f_priv;
+ rm = filep->f_inode->i_private;
+
+ /* Return the address on the media corresponding to the start of
Review Comment:
It is not immediately obvious to me how the thing works; I'll leave this
improvement for later.
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