This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:
apport-collect 1519623
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1519623
Title:
[Feature]USB core and xHCI tasks for USB 3.1 SuperSpeedPlus (SSP)
support for Alpine Ridge on SKL
Status in intel:
In Progress
Status in linux package in Ubuntu:
Incomplete
Bug description:
USB core expects the roothubs to support the same requests and descriptors as
external hubs. As the two roothubs (USB2 and USB3) are
part of xhci we need to support the descriptor and request changes in
USB3.1. In our case we need to:
1)Fill and return the new SuperSpeedPlus USB Device capability descriptor as
part of the BOS (Binary device Object Store) descritptor. The speed info needed
to fill this descriptor can be parsed from extended capability, supported
protocol PSI lists. (see xhci 1.1 section 7.2)
2)Return the new EXT_PORT_STATUS when usb core requests a get_port_status()
with new option. Can be read from xhci PORTSC register speed field, and map it
to the PSI in the extended capability.Optionally check it from slot output
context?
3) Check if usb core stored SSP (SuperSpeedPlus) isoc endpoint companion
data with the endpoint and use it to calculate max packets and bandwidth.
Upstream:
kernel:4.4
To manage notifications about this bug go to:
https://bugs.launchpad.net/intel/+bug/1519623/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
