On Fri, Apr 08, 2016 at 02:11:48AM +0300, Sam Protsenko wrote: [snip]
The only actual documentation for fastboot protocol I found is [1], and I don't see any mention of alignment there at all. So it wouldn't surprise me if that patch was done just out of of empiric observations. Which doesn't make it any less significant.
[snip]
[1] https://android.googlesource.com/platform/system/core/+/master/fastboot/fast...
So, the protocol says "Max packet size must be 64 bytes for full-speed, 512 bytes for high-speed and 1024 bytes for Super Speed USB.". What are wMaxPacketSize and ep->maxpacket in these cases, both the TI+DWC3 ones, Broadcom+DWC2 and if someone can grab one, TI+MUSB. And then, what exactly does everyone failure logs look like, perhaps with some annotations where it fails?