forked from Imagelibrary/rtems
3e08d4ee62
* libmisc/capture/capture-cli.c, libmisc/capture/capture.c, libmisc/capture/capture.h, libmisc/cpuuse/cpuuse.c, libmisc/devnull/devnull.c, libmisc/fsmount/fsmount.h, libmisc/monitor/mon-config.c, libmisc/monitor/mon-dname.c, libmisc/monitor/mon-driver.c, libmisc/monitor/mon-extension.c, libmisc/monitor/mon-itask.c, libmisc/monitor/mon-monitor.c, libmisc/monitor/mon-mpci.c, libmisc/monitor/mon-object.c, libmisc/monitor/mon-prmisc.c, libmisc/monitor/mon-queue.c, libmisc/monitor/mon-server.c, libmisc/monitor/mon-symbols.c, libmisc/monitor/monitor.h, libmisc/monitor/symbols.h, libmisc/mw-fb/mw_uid.c, libmisc/rtmonuse/rtmonuse.c, libmisc/serdbg/serdbg.h, libmisc/serdbg/serdbgio.c, libmisc/serdbg/termios_printk.c, libmisc/serdbg/termios_printk.h, libmisc/shell/shell.c, libmisc/shell/shell.h, libmisc/stackchk/check.c, libmisc/stackchk/internal.h: Convert to using c99 fixed size types.
185 lines
3.5 KiB
C
185 lines
3.5 KiB
C
/* /dev/null
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*
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* Derived from rtems' stub driver.
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*
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* Author: Ralf Corsepius (corsepiu@faw.uni-ulm.de)
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*
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* COPYRIGHT (c) 1989-2000.
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.com/license/LICENSE.
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*
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* $Id$
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <rtems.h>
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#include <rtems/devnull.h>
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#include <rtems/libio.h>
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/* null_initialize
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*
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* This routine is the null device driver init routine.
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*
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* Input parameters:
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* major - device major number
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* minor - device minor number
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* pargp - pointer to parameter block
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*
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* Output parameters:
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* rval - NULL_SUCCESSFUL
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*/
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uint32_t NULL_major;
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static char initialized;
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rtems_device_driver null_initialize(
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rtems_device_major_number major,
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rtems_device_minor_number minor,
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void *pargp
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)
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{
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rtems_device_driver status;
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if ( !initialized ) {
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initialized = 1;
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status = rtems_io_register_name(
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"/dev/null",
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major,
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(rtems_device_minor_number) 0
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);
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if (status != RTEMS_SUCCESSFUL)
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rtems_fatal_error_occurred(status);
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NULL_major = major;
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}
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return RTEMS_SUCCESSFUL;
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}
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/* null_open
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*
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* This routine is the null device driver open routine.
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*
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* Input parameters:
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* major - device major number
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* minor - device minor number
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* pargb - pointer to open parameter block
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*
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* Output parameters:
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* rval - NULL_SUCCESSFUL
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*/
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rtems_device_driver null_open(
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rtems_device_major_number major,
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rtems_device_minor_number minor,
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void *pargp
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)
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{
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return NULL_SUCCESSFUL;
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}
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/* null_close
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*
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* This routine is the null device driver close routine.
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*
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* Input parameters:
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* major - device major number
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* minor - device minor number
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* pargb - pointer to close parameter block
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*
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* Output parameters:
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* rval - NULL_SUCCESSFUL
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*/
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rtems_device_driver null_close(
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rtems_device_major_number major,
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rtems_device_minor_number minor,
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void *pargp
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)
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{
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return NULL_SUCCESSFUL;
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}
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/* null_read
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*
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* This routine is the null device driver read routine.
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*
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* Input parameters:
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* major - device major number
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* minor - device minor number
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* pargp - pointer to read parameter block
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*
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* Output parameters:
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* rval - NULL_SUCCESSFUL
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*/
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rtems_device_driver null_read(
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rtems_device_major_number major,
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rtems_device_minor_number minor,
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void *pargp
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)
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{
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return NULL_SUCCESSFUL;
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}
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/* null_write
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*
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* This routine is the null device driver write routine.
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*
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* Input parameters:
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* major - device major number
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* minor - device minor number
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* pargp - pointer to write parameter block
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*
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* Output parameters:
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* rval - NULL_SUCCESSFUL
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*/
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rtems_device_driver null_write(
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rtems_device_major_number major,
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rtems_device_minor_number minor,
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void *pargp
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)
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{
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rtems_libio_rw_args_t *rw_args = (rtems_libio_rw_args_t *) pargp;
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if ( rw_args )
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rw_args->bytes_moved = rw_args->count;
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return NULL_SUCCESSFUL;
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}
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/* null_control
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*
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* This routine is the null device driver control routine.
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*
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* Input parameters:
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* major - device major number
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* minor - device minor number
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* pargp - pointer to cntrl parameter block
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*
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* Output parameters:
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* rval - NULL_SUCCESSFUL
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*/
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rtems_device_driver null_control(
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rtems_device_major_number major,
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rtems_device_minor_number minor,
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void *pargp
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)
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{
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return NULL_SUCCESSFUL;
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}
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