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

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Doesn't park here:

ehm:/home/folkert# ./park /dev/hda
head not parked 4c

ehm:/home/folkert# hdparm -i /dev/hda

/dev/hda:

 Model=IC25N060ATMR04-0, FwRev=MO3OAD5A, SerialNo=MRG357K3KKN0XH
 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
 BuffType=DualPortCache, BuffSize=7884kB, MaxMultSect=16, MultSect=16
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=117210240
 IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes:  pio0 pio1 pio2 pio3 pio4
 DMA modes:  mdma0 mdma1 mdma2
 UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5
 AdvancedPM=yes: mode=0x80 (128) WriteCache=enabled
 Drive conforms to: ATA/ATAPI-6 T13 1410D revision 3a:

 * signifies the current active mode

[   38.772050] hda: max request size: 1024KiB
[   38.792458] hda: 117210240 sectors (60011 MB) w/7884KiB Cache, CHS=16383/255/63, UDMA(100)

> > > #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;
> > > }


Folkert van Heusden

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