INTERRUPT_ON_COMPLETION
SetTD_ioc(uhcip, td, INTERRUPT_ON_COMPLETION);
SetTD_ioc(uhcip, td, INTERRUPT_ON_COMPLETION);
SetTD_ioc(uhcip, current_dummy, INTERRUPT_ON_COMPLETION);
SetTD_ioc(uhcip, current_td, INTERRUPT_ON_COMPLETION);