ClearPipeStallBothEnds() appears to fail on some devices, but if we ignore
that error then fastboot does work. So ignore the error.
Change-Id: Ic866ece28a57c081e34079e1a032fa8155301ddf
The kernel panic seems to be related to the driver trying to allocate
too many pages from the IO mapper. That may be caused by the fact
that we try to perform a 100+ MiB transfer in a single IO operation.
This change breaks the transfer down into 1 MiB chunks.
So far after a day of testing, no kernel panics have occurred compared
to 5 in the previous 24 hours!
Change-Id: I8d27a546e0c0bf4fe2f0fc7fcad65a88d3e6bee0
Without this patch, "adb devices" will say "no permissions" when it sees
a device it can't write to, but "fastboot devices" will silently ignore it.
This is confusing to n00bs, especially since it doesn't seem to be widely
known that a device's USB id might be different in the bootloader (meaning
two udev rules are needed). It can also be confusing if you're sshed in,
when you can't access the device because you won't be in the "plugdev"
group, but "fastboot devices" won't make this clear.
I'm not sure about the Mac OS and Windows changes. AIUI, devices are always
writable on those platforms, but I don't use either, so I can't test this.
This patch shouldn't alter the behavior on either of those platforms.
Nick Pelly