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NSH dd command test with block devices

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1242 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2008-11-15 16:36:32 +00:00
parent 4a9e922943
commit d6aa80bbd0
6 changed files with 137 additions and 173 deletions
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include/nuttx/fs.h
+9 -3
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@@ -370,9 +370,10 @@ EXTERN int lib_flushall(FAR struct streamlist *list);
* subdirectory
*/
/* Register /dev/null */
/* Register /dev/null and /dev/zero */
EXTERN void devnull_register(void);
EXTERN void devzero_register(void);
/* Setup the loop device so that it exports the file referenced by 'filename'
* as a block device.
@@ -382,12 +383,17 @@ EXTERN int losetup(const char *devname, const char *filename, uint16 sectsize,
off_t offset, boolean readonly);
EXTERN int loteardown(const char *devname);
/* Setup so that the block driver referenced by 'blkdev' can be accessed
* similar to a character device.
/* Setup so that the block driver referenced by 'blkdev' can be accessed
* similar to a character device.
*
* Access via a character device:
*/
EXTERN int bchdev_register(const char *blkdev, const char *chardev, boolean readonly);
EXTERN int bchdev_unregister(const char *chardev);
/* Low level, direct access: */
EXTERN int bchlib_setup(const char *blkdev, boolean readonly, FAR void **handle);
EXTERN int bchlib_teardown(FAR void *handle);
EXTERN ssize_t bchlib_read(FAR void *handle, FAR char *buffer, size_t offset, size_t len);