Re: BUG: USB audio discontinuities with 'UHCI: implement new semantics for URB_ISO_ASAP'

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Alan Stern wrote:
> It is now unnecessary to set urb->start_frame; in fact that field is
> now output-only.
>
> (To be fair, I haven't checked _all_ the HCDs in this regard, just
> uhci-hcd, ohci-hcd, and ehci-hcd.  However, if any other HCD requires
> urb->start_frame to be set then that HCD should be considered buggy and
> should be fixed.)

That would be fhci, imx21, isp1362, and musb.  The other HCDs (including
xhci) often have obsolete comments of the form "always assume
URB_ISO_ASAP" and do not implement the new semantics either.


Regards,
Clemens
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