8rda+ w/ linux

[otzi]

Hi all my first post in this forum !

Hi using my board in windows w/ mbm5 and leds of 80 ports says the temperature ....

In linux have any similar ?

thanks ...

[Áedán]

lm_sensors should be able to read the info. Don't know if it can update port 80 - there's no reason why it can't other than someone writing some code for it.

[EPoX Tech]

::winks::

Sure anyone from the Opensource community would be able to do that easily!

[Hasw]

Originally Posted by otzi

Hi all my first post in this forum !

Hi using my board in windows w/ mbm5 and leds of 80 ports says the temperature ....

In linux have any similar ?

thanks ...

Hi,

for the Port 80 display you need a kernel patch, because this port is used to generate
a delay. (Maybe you recognize that the LEDs are flickering). Look at <kernelsource>/include/asm/io.h and search for

#define __SLOW_DOWN_IO __asm__ __volatile__("outb %al,$0x80")

change 0x80 to 0x81 (it works for me) and recompile the kernel. If you get so
far, ask me for a program that is able to write the temp to the LEDs

Hasw

[otzi]

Originally Posted by Hasw

Hi,

for the Port 80 display you need a kernel patch, because this port is used to generate
a delay. (Maybe you recognize that the LEDs are flickering). Look at <kernelsource>/include/asm/io.h and search for

#define __SLOW_DOWN_IO __asm__ __volatile__("outb %al,$0x80")

change 0x80 to 0x81 (it works for me) and recompile the kernel. If you get so
far, ask me for a program that is able to write the temp to the LEDs

Hasw

Uau ... its work ... now says "00" ....
thanks Hasw ....

U know any program to write any values in leds ?

[Hasw]

Originally Posted by otzi

U know any program to write any values in leds ?

Here is a very simple program, compile it with "gcc port80.c -o port80"
-------------
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/io.h>

#define PORT 0x80

int main(int argc, char *argv[]) {

if(argc < 2) {
printf("Usage: %s [value]\n", argv[0]);
exit(1);
}

if(iopl(3) == -1) {
fprintf(stderr, "I/O permission error. (root?)\n");
}

printf("Writing 0x%x to port 0x%x\n", atoi(argv[1]), PORT);

outb(atoi(argv[1]), PORT);

return(0);
}
---------------------------

Hasw

[otzi]

Originally Posted by Hasw

Here is a very simple program, compile it with "gcc port80.c -o port80"
-------------
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/io.h>

#define PORT 0x80

int main(int argc, char *argv[]) {

if(argc < 2) {
printf("Usage: %s [value]\n", argv[0]);
exit(1);
}

if(iopl(3) == -1) {
fprintf(stderr, "I/O permission error. (root?)\n");
}

printf("Writing 0x%x to port 0x%x\n", atoi(argv[1]), PORT);

outb(atoi(argv[1]), PORT);

return(0);
}
---------------------------

Hasw

Thanks agains Hasw ...

To work I need remove 0x before %x ...

But ...

./port80 12
Writing c to port 80

./port80 23
Writing 17 to port 80



thanks again

[Hasw]

Originally Posted by otzi

Thanks agains Hasw ...

To work I need remove 0x before %x ...

But ...

./port80 12
Writing c to port 80

./port80 23
Writing 17 to port 80

thanks again

That 0x before %x shows you that the value is in Hex...
Ex:

12d = 0x0c hexl
23d = 0x17 hex

[otzi]

To write values in decimal i put %d but no work ....

[otzi]

Now working and show cpu temp .....

this source code :

---------------------------------------------------------
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/io.h>

#define PORT 0x80

int main(FILE *fp, int temp) {

if(iopl(3) == -1) {
fprintf(stderr, "I/O permission error. (root?)\n");
}


if ((fp = fopen("/proc/sys/dev/sensors/w83627hf-isa-0290/temp2", "r")) != NULL)
{
fscanf(fp, "60.0 50.0 %x", &temp);
fclose(fp);
}
else
return -1;

outb(temp,PORT);

return(0);
}
---------------------------------------------