On Jan 3, 2008 3:36 PM, David Brownell <[EMAIL PROTECTED]> wrote: > On Wednesday 02 January 2008, Bryan Wu wrote: > > B.T.W, 2 questions about the MUSB driver: > > 1. What's the plan for mainline merge of the whole MUSB driver? maybe > > I can cleanup current Blackfin ports to you guys. > > It might as well merge in 2.6.25-early. It'll be easier to integrate > patches that way. Including your Blackfin port. When I asked before, > nobody hugely objected to "one big patch". > > > > 2. Do you remember the PING issue I reported in OMAP list? How do you > > think of that? > > Yes, something needs to be done. EHCI might benefit from the same > kind of patch, to cope with ill-behaved usb thumb drives. > > > > > I have an idea: the USB_NAKLIMIT0 should be set to some value, when we > > > got NAK timeout interrupt, we can disable PING. When enumerating normal > > > USB stick, there is no NAK timeout, because PING is efficient for > > > handshaking. While problem USB stick will generate NAK timeout > > > interrupt, we disable PING for this kind of USB device enumeration. > > That sounds much better than your original patch, which disabled it > always. It might even be worth allocating a flag somewhere in the > usb_device structure to record when ep0 pings seem to misbehave. >
OK, I will work on it and send out a patch for that fix. Thanks -Bryan Wu -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
