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Open Source and information security mailing list archives
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Date: Wed, 1 Aug 2007 10:40:49 -0400 (EDT) From: Alan Stern <stern@...land.harvard.edu> To: David Engraf <david.engraf@...com.eu> cc: linux-kernel@...r.kernel.org, <linux-pci@...ey.karlin.mff.cuni.cz>, <gregkh@...e.de>, <linux-usb-devel@...ts.sourceforge.net> Subject: Re: [linux-usb-devel] [PATCH] USB BIOS early handoff only when the we the driver is configured On Wed, 1 Aug 2007, David Engraf wrote: > At the moment I have a Jetway/VIA Mainboard which seems to have a problem > with the handoff. Even > when I wait about 20 seconds the EHCI_USBLEGSUP_BIOS flag is not cleared. > I think this is a BIOS > bug and I will have to talk to Jetway/VIA. I have the same problem on my Intel motherboard. Which is surprising, considering that Intel invented the BIOS-handoff technique. > On the other hand, I don't need the EHCI controller in my kernel, so I > think the kernel shouldn't take the > handover for the EHCI controller like other OS which do not have an usb > driver and so don't know that > there is a EHCI_USBLEGSUP_BIOS flag which should be cleared. There ought to be a solution to satisfy everybody. For instance, you could add a Kconfig flag for enabling USB handoff, and make it be selected automatically if any of the PCI USB drivers are configured. Alan Stern - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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