xinu: Desktop/xinu_mips-1.0.2.tar/xinu_mips-1.0.2/system/open.c Source File

00001 
00007 /* Embedded XINU, Copyright (C) 2007.  All rights reserved. */
00008 
00009 #include <vararg.h>
00010 #include <kernel.h>
00011 #include <device.h>
00012 
00018 devcall open(ushort descrp, ...)
00019 {
00020         device *devptr;
00021         va_list ap;
00022         devcall result;
00023 
00024         if ( isbaddev(descrp) ) { return SYSERR; }
00025         devptr = &devtab[descrp];
00026         va_start(ap, descrp);
00027         result = ( (*devptr->open)(devptr, ap) );
00028         va_end(ap);
00029         return result;
00030 }