Hi, Todd Brandt <todd.e.brandt@xxxxxxxxxxxxxxx> writes: > Add a module parameter that replaces the USB_RESUME_TIMEOUT > and other hardcoded delay numbers with the USB spec minimums. > By default the patch retains the current values. > > The USB subsystem currently uses heavily padded values for TDRSMDN > and TRSTRCY. This patch keeps the current values by default, but if there's a reason for that. We've found many broken devices over the years and a lot of inconsistencies were also found while with host controller A or B or C, because they all used different timings. Using spec minimum is, actually, a recipe for disaster :-) There's no way we can guarantee all devices currently in use are respecting that part of the spec. This is a very fragile part of the USB spec which different folks have different understanding and that's why so many devices are "broken". I'd be careful with such a patchset. It's a nice idea, but I'd be careful :-) -- balbi -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
