Hello,
Thanks for the improvements.
>
> #include <sys/mman.h>
> #include <sys/stat.h>
> #include <fcntl.h>
> #include <stdio.h>
>
> int main(void)
> {
> int i;
> unsigned char *addr;
> int fd = open("/dev/mem", O_RDONLY);
>
> if ( fd == -1 ) {
> perror("failed to open /dev/mem");
> return 1;
> }
>
> addr = mmap(0, 128*1024*1024, PROT_READ, MAP_PRIVATE, fd, 0xFE000000);
>
> if ( addr == MAP_FAILED ) {
> perror("mmap failed");
> return 1;
> }
>
> /* we want function 3, 4 channels, 16AMB/channel */
> for ( i = 0; i < 64; i++ ) {
> int idx = i*2048;
> if ( addr[idx] != 0xff || addr[idx+1] != 0xff ) {
> printf("Intel sig at %i: %02x %02x\n",
> i, addr[idx], addr[idx+1]);
We should see the 86 80
> /* offset 85h function 3 */
> printf("Current temp is: %fC\n", addr[idx+(256*3)+0x85]/2.);
> }
> }
>
> munmap(addr, 128*1024*1024);
>
> return 0;
> }
>
> and here are the results:
>
> # ./fbdt
> Intel sig at 0: 1d 11
> Current temp is: 71.500000C
> Intel sig at 16: 1d 11
> Current temp is: 0.000000C
> Intel sig at 32: 1d 11
> Current temp is: 61.000000C
> Intel sig at 48: 1d 11
> Current temp is: 0.000000C
>
Hmm there is something wrong. Please provide output of lspci -vvv
and lspci -xxx
Do you have the windows software somewhere to download?
Rudolf
