[gentoo-dev] Re: 2.6.11-gentoo-r7: If USB core API (usbcore) is built-in, it conflicts with the rest of usb-dependent modules

[Duncan]

Lorenzo Hernandez Garcia-Hierro posted
<1115838647.25889.14.camel@localhost>, excerpted below,  on Wed, 11 May
2005 21:10:46 +0200:

> After some talk to gregkh, I've decided to send this message as it might
> give some light regarding the breakage of the USB modules when usbcore is
> built-in instead of compiled as module.
>
> Modules that are breaking with CONFIG_USB=y :
>
> - audio, bfusb, bcm203x, bpa10x, hci_usb, usblp, usb-midi, cdc_acm,
>    uhci-hcd, ohci-hcd, ehci-hcd, usb-storage...

> Greg suggested on fixing the Kconfig but I'm not sure if this a
> Gentoo-only issue, or it's widely. Thus, if it needs to be fixed, let me
> know and I'll get over it ASAP as it might be a blocking issue in certain
> cases.
>
> (It doesn't seem to be a good idea to let all the USB-related drivers
> getting built-in)

Is this the same issue that has USB failing to detect anything but the
hosts, when USB is built-in?  I haven't had issues building the kernel,
but with USB built-in, only the USB host is detected, nothing actually
plugged into it.  I thought my USB hardware was broken, and was prepared
to buy an add-on card before I used USB for anything non-optional, but
then the issue came up on the amd64 list, and someone mentioned that
building USB into the kernel would often cause this symptom, but it would
work just fine with the USB system modularized.  Sure enough, it did.

I can confirm /that/ issue occurs on vanilla kernel.org kernels, and has
for some time (several 2.6.x versions, anyway), since I don't use gentoo
kernels, but rather download my kernel sources directly from kernel.org.

-- 
Duncan - List replies preferred.   No HTML msgs.
"Every nonfree program has a lord, a master --
and if you use the program, he is your master."  Richard Stallman in
http://www.linuxdevcenter.com/pub/a/linux/2004/12/22/rms_interview.html


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