which drivers subdirs should be automatically selected?

Sascha Hauer s.hauer at pengutronix.de
Wed Dec 23 04:06:39 EST 2009


On Tue, Dec 22, 2009 at 10:02:40AM -0500, Robert P. J. Day wrote:
> 
> drivers/Makefile:
> 
> obj-y   += net/
> obj-y   += serial/
> obj-y   += nand/
> obj-y   += nor/
> obj-y   += usb/
> obj-$(CONFIG_SPI) += spi/
> obj-$(CONFIG_I2C) += i2c/
> obj-$(CONFIG_VIDEO) += video/
> 
> 
>   is there a fundamental reason that some of those subdirs are
> auto-selected, while others are based on a CONFIG variable?  asked
> another way, are there some driver subdirs that are so fundamentally
> required that they *should* be auto-selected, or should *everything*
> be a user-selectable choice?  the above just seems slightly
> inconsistent and non-obvious.

Nothing of the above is really fundamental. Without serial drivers you
won't see anything of course, but this won't stop barebox from working.
I think this only reflects a change of taste during time and should be
done consistently so that other people know how to do it. Prefered is
the obj-$(CONFIG_SPI) += spi/ style.

Sascha


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