On Thu, 17 Nov 2011, Geoff Levand wrote: > On Tue, 2011-11-15 at 11:52 -0500, Alan Stern wrote: > > On Tue, 15 Nov 2011, Geoff Levand wrote: > > > > > PS3 EHCI HC errata fix 236 - During high speed bulk out and high speed control > > > out transfers the PS3 EHCI HC will issue an OUT token on the USB bus when a > > > device responds with a NAK. The USB 2.0 standard specifies that a PING token > > > must be output. The work-around is for the HC driver to initialize the > > > RL (NAK count reload) field of the queue head to a non-zero value. > > > > This can't be right. The RL field is already initialized to > > EHCI_TUNE_RL_HS, which is #defined as 4. > > Yes, you are correct, I must have missed that. > > > Maybe for PS3 EHCI you want to #define it as 2 instead. > > The errata sheet says 'using the RL of the QH with values > other than 0', so 4 should be OK. So we can drop this patch, right? Have you ever encountered the problem it was supposed to fix? Alan Stern -- 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
