minix/lib/syslib/sys_sdevio.c
Ben Gras 9df1183b94 . removed const from putenv() for g++
. added safecopies.c:
  these are library functions to maintain grant tables in own address space
. sys_safecopy.c:
  interfaces to kernel calls to perform safe copy functions in from or to
  foreign process
. changes in i/o fields (type merged with request) reflected in
  library functions (sys_out.c, sys_vinb.c, sys_vinl.c, sys_vinw.c,
  sys_voutb.c, sys_voutl.c, sys_voutw.c)
. type merged with request in sys_sdevio, also now accepts offset which
  is used when a grant is specified (the _DIO_SAFE subtype)
. system printf() function changed to send DIAGNOSTICS_S messages, which
  specify a grant id instead of a direct address for the buffer to be
  printed; tty and log can then safecopy the buffer
2006-06-20 08:45:04 +00:00

26 lines
841 B
C

#include "syslib.h"
/*===========================================================================*
* sys_sdevio *
*===========================================================================*/
PUBLIC int sys_sdevio(req, port, proc_nr, buffer, count, offset)
int req; /* request: DIO_{IN,OUT}PUT_* */
long port; /* port address to read from */
endpoint_t proc_nr; /* process where buffer is */
void *buffer; /* pointer to buffer */
int count; /* number of elements */
vir_bytes offset; /* offset from grant */
{
message m_io;
int result;
m_io.DIO_REQUEST = req;
m_io.DIO_PORT = port;
m_io.DIO_VEC_ENDPT = proc_nr;
m_io.DIO_VEC_ADDR = buffer;
m_io.DIO_VEC_SIZE = count;
m_io.DIO_OFFSET = offset;
return(_taskcall(SYSTASK, SYS_SDEVIO, &m_io));
}