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    SubjectRe: sata & scsi suggestion for make menuconfig
    James Bottomley wrote:
    > On Sun, 2007-09-09 at 23:22 +0200, Andi Kleen wrote:
    >> When it costs 10000 people half an hour to learn and correct this it
    >> wasted 5000 hours of previous livetime.
    >> Besides there is no good reason to have ever learned this imho.
    > The process of becoming an expert in the kernel build system naturally
    > involves making mistakes and learning from them, so this is probably
    > time reasonably well spent.

    Nevertheless we should try to arrange the menus in a way that makes
    sense to as many people as possible. The difficulty is, different
    environments call for different menu layouts, as your previous example
    of SATA DVD-only boxes demonstrates.

    However, liberal usage of 'select' is not the ultimate solution to
    create menus that work for more people. Just one problem with select is
    that it works behind the back of the people configuring kernels (unless
    they use an UI with debug options turned on) --- they have less control,
    they are less informed. ATA already 'select's SCSI. What do we gain
    from hiding the fact that Linux' SCSI option is not just for those
    50-wire ribbons (which people still think SCSI stands for) but is a very
    central Linux subsystem for even more than what complies to the SCSI
    family of standards?

    'select' should really be limited to switch on small library-like code
    without further dependencies or requirements. SCSI, together with its
    upper layer options, is not of this kind of library.

    We should think about order and grouping of prompts and the labels of
    prompts (there were already suggestions in this discussion) before we
    resort to 'select' --- or even worse, select options unconditionally
    which are not always necessary to be enabled.

    A pro pos grouping of options --- consider how options for another
    central subsystem are laid out:

    Networking options
    TCP/IP networking

    Device Drivers
    Network device support
    Ethernet (10 or 100MBit)

    This also happens to reflect the layout of sources in directories, and
    the current SCSI menu layout is close to source layout too --- but it
    doesn't have to be that way.
    Stefan Richter
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