Hi, >On 30.8.2024 18.45, Michał Pecio wrote: >> Hi, >> >>> Field Rsvd0 is reserved field, so patch should not have impact for >>> other xHCI controllers. >> Wait, is this a case of Linux failing to zero-initialize something >> that should be zero initialized before use (why not explain it as >> such?), or are you suggesting monkeying with internal xHC data at run >> time, in area which is known to actually be used by at least one >implementation? >> > >Patch is monkeying with internal xHC RsvdO field. > > >> There is no mention of Rsvd0 in the xHCI spec, did you mean RsvdO? >> >> Reserved and Opaque, >> For exclusive use by the xHC. >> Software shall *not* write this, unless allowed by the vendor. >> >> Cadence isn't the only xHC vendor... >> > >Makes sense, Pawel Laszczak, could you make this patch Cadence specific. I understand your concerns. I will prepare new patch. For this purpose I'm going to add some extra quirk definition. Thanks Pawel > >Thanks >Mathias