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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2015-01-31 21:23:26 +0100 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2015-02-04 19:31:52 +0100 |
| commit | 4c14ace6dd8988696481e484575dcbad06f4a158 (patch) | |
| tree | c6eda4fc17ac7a9d9073678727467a0d2b39c933 | |
| parent | Filesystem: Statically initialize rtems_libio_iops (diff) | |
| download | rtems-4c14ace6dd8988696481e484575dcbad06f4a158.tar.bz2 | |
Add rtems_filesystem_make_dev_t_from_pointer()
| -rw-r--r-- | cpukit/libcsupport/include/rtems/libio.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/cpukit/libcsupport/include/rtems/libio.h b/cpukit/libcsupport/include/rtems/libio.h index a4607de0e9..a959cfec77 100644 --- a/cpukit/libcsupport/include/rtems/libio.h +++ b/cpukit/libcsupport/include/rtems/libio.h @@ -1442,6 +1442,15 @@ static inline dev_t rtems_filesystem_make_dev_t( return temp.device; } +static inline dev_t rtems_filesystem_make_dev_t_from_pointer( + const void *pointer +) +{ + uint64_t temp = (((uint64_t) 1) << 63) | (((uintptr_t) pointer) >> 1); + + return rtems_filesystem_make_dev_t((uint32_t) (temp >> 32), (uint32_t) temp); +} + static inline rtems_device_major_number rtems_filesystem_dev_major_t( dev_t device ) |