lib/syslib/sys_sdevio.c

   1 #include "syslib.h"
   2
   3 /*===========================================================================*
   4  *                                sys_sdevio                                 *
   5  *===========================================================================*/
   6 PUBLIC int sys_sdevio(req, port, proc_nr, buffer, count, offset)
   7 int req;                                /* request: DIO_{IN,OUT}PUT_* */
   8 long port;                              /* port address to read from */
   9 endpoint_t proc_nr;                     /* process where buffer is */
  10 void *buffer;                           /* pointer to buffer */
  11 int count;                              /* number of elements */
  12 vir_bytes offset;                       /* offset from grant */
  13 {
  14     message m_io;
  15     int result;
  16
  17     m_io.DIO_REQUEST = req;
  18     m_io.DIO_PORT = port;
  19     m_io.DIO_VEC_ENDPT = proc_nr;
  20     m_io.DIO_VEC_ADDR = buffer;
  21     m_io.DIO_VEC_SIZE = count;
  22     m_io.DIO_OFFSET = offset;
  23
  24     return(_taskcall(SYSTASK, SYS_SDEVIO, &m_io));
  25 }
  26