On 09/12/2014 12:10 PM, Kevin O'Connor wrote:
The usbdev->port field is zero indexed, while the USB spec expects the port values to start at one.
Signed-off-by: Kevin O'Connor firstname.lastname@example.org
This problem was causing intermittent detection failures with low speed devices on my c720. It seems that most hubs don't care about this field, as the code has never been correct but it hasn't shown up as a problem prior to now. (And even on the c720, it would still work much of the time.)
The tip of the testing tree works reliable for me. While rebooting my Acer C720 several times I bisected the max. amount of memory to pass to the kernel to mem=1983M.