From 4c14ace6dd8988696481e484575dcbad06f4a158 Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Sat, 31 Jan 2015 21:23:26 +0100 Subject: Add rtems_filesystem_make_dev_t_from_pointer() --- cpukit/libcsupport/include/rtems/libio.h | 9 +++++++++ 1 file changed, 9 insertions(+) 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 ) -- cgit v1.2.3