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    SubjectRe: ide.c question!
    On Sun, 1 Jun 1997, Gadi Oxman wrote:

    > 2. You can issue the HDIO_SCAN_HWIF ioctl to any IDE drive which
    > is not on the interface which you wish to rescan. For example,
    > to re-scan hda + hdb, we can run:
    > ...
    > int args[3] = {0x1f0, 0, 0};
    > ...
    > fd = open("/dev/hdc", O_RDONLY);
    > ioctl(fd, HDIO_SCAN_HWIF, args);

    Ok. I have no source for 2.1. kernels, so how does this ioctl handlings
    reads in source? I did so:

    switch (cmd) {
    case HDIO_IDENT:
    {

    for (index = 0; index < MAX_HWIFS; ++index) {
    printk("Probe1s\n");
    probe_hwif (&ide_hwifs[index]);
    printk("Probe1e\n");
    }
    for (index = 0; index < MAX_HWIFS; ++index) {
    printk("Probe2s\n");
    hwif_init (index);
    printk("Probe2e\n");
    }

    But it does not work, and in second or two kernel dies.:-)

    > 3. If you have a single IDE interface, you can compile ide-probe.c
    > both as a module and into the kernel by:
    > copying ide-probe.c to ide-probe-m.c
    > adding M_OBJS += ide-probe-m.o after L_OBJS += ide-probe.o
    > in linux/drivers/block/Makefile
    > and just "insmod ide-probe-m" whenever you wish to re-scan
    > the idle IDE devices.

    Will this module work with 2.0 kernels?

    > > not under Linux: "No ??Q after issuing write". What can I do with it? :-)
    > And the line just before the "no DRQ after issuing write", does it read
    > "hdx: status timeout: status=0x58 { DriveReady SeekComplete DataRequest }"?

    Yes!

    Thank you for answer!

    > Gadi




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