Ralf Mardorf wrote: > If I unbind the ehci device that shares the IRQ with audio cards, still > all 10 available USB ports work > > Could somebody explain what this does mean? EHCI controllers handle _only_ high-speed (USB 2.0) connections; full- and low-speed connections require a separate controller (OHCI or UHCI). You probably have a bunch of those. > If I unbound ports on my old mobo, they stopped working. Some chipsets have EHCI controllers with a built-in hub that handles full-/low-speed connections, so for the OS, all connections end up at the EHCI controller. Regards, Clemens _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
