Oscar wrote: > # lsusb > Bus 003 Device 006: ID 1604:8007 Tascam US-122 Audio/Midi Interface > Bus 003 Device 002: ID 058f:9254 Alcor Micro Corp. Hub Please note that even the latest kernel may have some bandwidth problems (not related to the setting of CONFIG_USB_BANDWIDTH) when accessing USB 1.x audio devices (like the US-122) through a USB 2.0 hub. Clemens