Hi Thanks for all answers.I write a sample programe that do the job i want.The program is test on OpenBSD 3.9 .The source can be doanload from http://www.betstrikes.com/OpenBSD/outb.c
/* * You need to have the machdep.allowaperture sysctl set to >=1 if running at securelevel 1 or above. * syscrl -w machdep.allowaperture=2 * thanks to http://marc.theaimsgroup.com/?l=openbsd-tech&m=101984806101040&w=2 * * To compile use: * gcc -O -li386 outb.c -o outb * */ #include <stdio.h> #include <stdlib.h> #include <sys/types.h> #include <sys/syscall.h> #include <machine/sysarch.h> #include <machine/pio.h> #define base 0x378 /* printer port base address */ int main(int argc, char *argv[]) { int value; int port; u_long iomap[32]; extern char *__progname; if (argc!=3) { fprintf(stderr, "Usage: %s [value]\n", __progname); exit(1); } if (sscanf(argv[1],"%i",&value)!=1) fprintf(stderr, "Error: Parameter is not a number.\n"), exit(1); if ((value<0) || (value>255)) fprintf(stderr, "Error: Invalid numeric value. Enter value between 0 and 255\n"), exit(1); /* Enable access to the port */ port = base; struct i386_set_ioperm_args ioperm; ioperm.iomap = iomap; syscall(SYS_sysarch, I386_GET_IOPERM, (char *) &ioperm); iomap[port >> 5] &= ~(1 << (port & 0x1f)); syscall(SYS_sysarch, I386_SET_IOPERM, (char *) &ioperm); outb(port, value); /* Set the output register */ return 0; } Any suggestions and comments are wellcome. Best regards Tihomir --- Nick Guenther <[EMAIL PROTECTED]> wrote: > On 5/5/06, Tihomir Koychev <[EMAIL PROTECTED]> wrote: > > Hi > > Can someone suggest simple application which can send data to > parallel > > port.I want to send 0,1 on pin2 to control relay. > > > > best regards > > Tihomir > > > > Start here: > http://marc.theaimsgroup.com/?l=openbsd-tech&m=101984806101040&w=2 > www.BetStrikes.com - futbolni prognozi Tsrankmh opncmngh
