On Wed, 2010-04-07 at 14:14 -0700, David Brownell wrote: > On Tuesday 06 April 2010, you wrote: > Recall that the reason to avoid sending zero length packts > (ZLPs) is that many systems don't cope well with them... > > The ""don't cope well" can be at the hardware level, > or drivers not limited to device firmware. I've seen > the failures be very context-dependent .... as in, one > standalone ZLP might work, but mix it in with back-to-back > delivery of other packets and trouble ensues... > > In short, it's hard to know which combinations of > hardware an firmware would need it .... versus which > ones it would break. > > ... and thus risky to try sending ZLPs through systems > shere for many years) we've carefully avoided doing that. > > > - Dave > Hi Dave, Nice to hear your opinion on this matter. Are you recommending our patch be retracted? If so, we can look at other ways to fix the problem when a zero length packet is missing. Regards, Elina -- 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
