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    From
    SubjectRE: IBM HDAPS things are looking up (was: Re: [Hdaps-devel] Re: [ltp] IBM HDAPS Someone interested? (Accelerometer))
    Date
    Jens,

    Thanks for this util. :-) It will make things easier for us and do part of
    the Job we are looking for. I will post this script in the hdaps.sf.net for
    people if it's ok with you.

    Thanks again,

    .Alejandro

    > > #include <stdio.h>
    > > #include <unistd.h>
    > > #include <fcntl.h>
    > > #include <string.h>
    > > #include <sys/ioctl.h>
    > > #include <linux/hdreg.h>
    > >
    > > int main(int argc, char *argv[])
    > > {
    > > unsigned char buf[8];
    > > int fd;
    > >
    > > if (argc < 2) {
    > > printf("%s <dev>\n", argv[0]);
    > > return 1;
    > > }
    > >
    > > fd = open(argv[1], O_RDONLY);
    > > if (fd == -1) {
    > > perror("open");
    > > return 1;
    > > }
    > >
    > > memset(buf, 0, sizeof(buf));
    > > buf[0] = 0xe1;
    > > buf[1] = 0x44;
    > > buf[3] = 0x4c;
    > > buf[4] = 0x4e;
    > > buf[5] = 0x55;
    > >
    > > if (ioctl(fd, HDIO_DRIVE_TASK, buf)) {
    > > perror("ioctl");
    > > return 1;
    > > }
    > >
    > > if (buf[3] == 0xc4)
    > > printf("head parked\n");
    > > else
    > > printf("head not parked %x\n", buf[3]);
    > >
    > > close(fd);
    > > return 0;
    > > }

    -
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