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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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