| 1 | #include <stdio.h> |
| 2 | #include <sys/io.h> |
| 3 | #include <errno.h> |
| 4 | #include <stdlib.h> |
| 5 | #include <unistd.h> |
| 6 | |
| 7 | #define die(x) \ |
| 8 | { \ |
| 9 | char buf[BUFSIZ]; \ |
| 10 | snprintf(buf, sizeof(buf), \ |
| 11 | "%s: %d: %s: %s", \ |
| 12 | __FILE__, (int) __LINE__, __FUNCTION__, x); \ |
| 13 | perror(buf); \ |
| 14 | exit(EXIT_FAILURE); \ |
| 15 | } |
| 16 | |
| 17 | int |
| 18 | main(void) |
| 19 | { |
| 20 | int ret; |
| 21 | unsigned int word; |
| 22 | |
| 23 | ret = ioperm(0xe800,8,1); |
| 24 | if (ret < 0) { |
| 25 | die("ioperm"); |
| 26 | } |
| 27 | word = inw(0xe804); |
| 28 | printf("0x%04x\n", 0x0 | word); |
| 29 | |
| 30 | word = inw(0xe806); |
| 31 | printf("0x%04x\n", 0x0 | word); |
| 32 | |
| 33 | ret = ioperm(0xe800,8,0); |
| 34 | if (ret < 0) { |
| 35 | die("ioperm"); |
| 36 | } |
| 37 | |
| 38 | return(EXIT_SUCCESS); |
| 39 | } |
| 40 | |