RE: some question about xhci TRB_INTR_TARGET

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From: vichy
> hi all:
> from xhci spec, Interrupter Target is the value between 0 and MaxIntrs-1.
> But why the parameter pass to TRB_INTR_TARGTRB_INTR_TARGET is always 0.
> 
> Does that mean so far xhci host didn't support multi-interrupt as
> MSI-X suggested?

AFAIK The Linux USB stack doesn't support the locking required for
fine-grained interrupts. So only a single interrupt can be supported.

	David



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