On Sun, 4 Jun 2006, Olaf Hering wrote: > Is this related to the 'max power per port' change? Have read it > somewhere on lkml, no idea if it was introduced in 2.6.16. > > https://bugzilla.novell.com/show_bug.cgi?id=179366
This has nothing to do with the power budgeting change. More likely it is a hardware incompatibility; the EHCI controller on the laptop does not like the device. Putting a Belkin hub in between forced the device to run at full speed instead of high speed, so the UHCI controller was used instead -- then it worked okay. I don't know why it worked okay when it was plugged in at boot time. The only way to get more insight is for the user to build a kernel with CONFIG_USB_DEBUG turned on and to provide the dmesg log showing how the device fails to work. Alan Stern _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
