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author | Joel Sherrill <joel.sherrill@OARcorp.com> | 2007-05-29 19:56:35 +0000 |
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committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 2007-05-29 19:56:35 +0000 |
commit | 9c556023f0d8d47bf5ce39a524e838936db7701f (patch) | |
tree | 9ef5118d3c1c69bd9ad651e681ffe16471b0ea14 /cpukit/sapi/src/iounregisterdriver.c | |
parent | 2007-05-29 Joel Sherrill <joel.sherrill@OARcorp.com> (diff) | |
download | rtems-9c556023f0d8d47bf5ce39a524e838936db7701f.tar.bz2 |
2007-05-29 Joel Sherrill <joel.sherrill@OARcorp.com>
* sapi/Makefile.am, sapi/include/rtems/io.h, sapi/src/io.c: Split into
one function per file execpt io.c which contains required
initialization methods.
* sapi/src/ioclose.c, sapi/src/iocontrol.c, sapi/src/iodata.c,
sapi/src/ioinitialize.c, sapi/src/ioopen.c, sapi/src/ioread.c,
sapi/src/ioregisterdriver.c, sapi/src/iounregisterdriver.c,
sapi/src/iowrite.c: New files.
Diffstat (limited to '')
-rw-r--r-- | cpukit/sapi/src/iounregisterdriver.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/cpukit/sapi/src/iounregisterdriver.c b/cpukit/sapi/src/iounregisterdriver.c new file mode 100644 index 0000000000..5761138b09 --- /dev/null +++ b/cpukit/sapi/src/iounregisterdriver.c @@ -0,0 +1,48 @@ +/* + * Input/Output Manager - Dynamically Unregister Device Driver + * + * COPYRIGHT (c) 1989-2007. + * On-Line Applications Research Corporation (OAR). + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.com/license/LICENSE. + * + * $Id$ + */ + +#if HAVE_CONFIG_H +#include "config.h" +#endif + +#include <rtems/system.h> +#include <rtems/io.h> +#include <string.h> + +/* + * rtems_io_unregister_driver + * + * Unregister a driver from the device driver table. + * + * Input Paramters: + * major - device major number + * + * Output Parameters: + * RTEMS_SUCCESSFUL - if successful + * error code - if unsuccessful + */ + +rtems_status_code rtems_io_unregister_driver( + rtems_device_major_number major +) +{ + if ( major < _IO_Number_of_drivers ) { + memset( + &_IO_Driver_address_table[major], + 0, + sizeof( rtems_driver_address_table ) + ); + return RTEMS_SUCCESSFUL; + } + return RTEMS_UNSATISFIED; +} |