Re: [PATCH] USB BIOS early handoff only when the we the driver is configured

Alan Stern <[email protected]>
Newsgroups gmane.linux.usb.devel,gmane.linux.kernel
Message-ID <[email protected]>
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


-------------------------------------------------------------------------
This SF.net email is sponsored by: Splunk Inc.
Still grepping through log files to find problems?  Stop.
Now Search log events and configuration files using AJAX and a browser.
Download your FREE copy of Splunk now >>  http://get.splunk.com/
_______________________________________________
[email protected]
To unsubscribe, use the last form field at:
https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.