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https://github.com/freebsd/freebsd-src
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39 lines
600 B
C
39 lines
600 B
C
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <pccard/card.h>
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int
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pccardmem_main(argc, argv)
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int argc;
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char *argv[];
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{
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int addr = 0;
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int fd;
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if (argc > 2)
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{
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fprintf(stderr, "usage: %s [ memory-address ]\n", argv[0]);
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exit(1);
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}
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fd = open("/dev/card0", 0);
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if (fd < 0)
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{
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perror("/dev/card0");
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exit(1);
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}
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if (argc == 2)
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{
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if (sscanf(argv[1], "%x", &addr) != 1)
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{
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fprintf(stderr, "arg error\n");
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exit(1);
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}
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}
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if (ioctl(fd, PIOCRWMEM, &addr))
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perror("ioctl");
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else
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printf("PCCARD Memory address set to 0x%x\n", addr);
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exit(0);
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}
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