Commits
Bin Meng committed eaaefb066c8
usb: xhci: Fix config fail of FS hub behind a HS hub with MTT If a full speed hub connects to a high speed hub which supports MTT, the MTT field of its slot context will be set to 1 when xHCI driver setups an xHCI virtual device in xhci_setup_addressable_virt_dev(). Once usb core fetch its hub descriptor, and need to update the xHC's internal data structures for the device, the HUB field of its slot context will be set to 1 too, meanwhile MTT is also set before, this will cause configure endpoint command fail. In the case, we should clear MTT to 0 for full speed hub according to section 6.2.2. This keeps in sync with Linux kernel commit: 096b110: usb: xhci: fix config fail of FS hub behind a HS hub with MTT Signed-off-by: Bin Meng <bmeng.cn@gmail.com>