On Sat, 5 Nov 2005, Charles Shannon Hendrix wrote: > Thu, 03 Nov 2005 @ 10:26 -0500, Alan Stern said: > > > On Wed, 2 Nov 2005, Charles Shannon Hendrix wrote: > > > > > I have been using my USB2 devices with Linux for some time now, but > > > recently have started having troubles with them. > > > > I don't know what's going wrong with your EHCI controller, or how to fix > > it. > > I don't see anything wrong with my EHCI controller. Works fine from > where I sit. > > Is there something specific you think is wrong with it?
Like I said, I don't know what might be going wrong. It just seemed like a good possibility, since you said you were having problems with your USB2 devices. Other possibilities include: Your devices are going bad, your cables are going bad, the driver is going bad, some other part of the system is going bad. You have ruled out the first two options, and the third option is ruled out by the fact that so many other people use the same driver with no difficulties at all. What does that leave? > > The entries in your listing mean that all 5 controllers share the same > > IRQ line. This is not a very good design, but I don't know what can be > > done about it. > > Are you assuming the design is bad because they share an IRQ line or do > you know something more about the design of the K8V-X? > > From what I've read of these controllers and this VIA southbridge, this > is how they are supposed to be connected. I'm assuming the design is bad because they share an IRQ line. Shared IRQs are generally regarded as undesirable, and to have 5 devices use a single line!... That alone qualifies as bad design, even if everything else is perfect. Alan Stern ------------------------------------------------------- SF.Net email is sponsored by: Tame your development challenges with Apache's Geronimo App Server. Download it for free - -and be entered to win a 42" plasma tv or your very own Sony(tm)PSP. Click here to play: http://sourceforge.net/geronimo.php _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
