Change since v1: [PATCH 3] Rename link file's name "child" to "device", add check of return value of sysfs_create_link() and handle error return value properly. Change since v2: [PATCH 1] fix a logic backward problem. Add changelog about change ehci root hub descriptors based on ACPI information. [PATCH 2] Add changelog about using ACPI inforatmion to set hub DeviceRemovable rather than xhci PORTSC. Change since v3 [PATCH 3] Add check of udev->parent before define "struct usb_port *port_dev" since if udev->parent is NULL, it would crash. This patchset is to set DeviceRemovable according ACPI information and create a new attribute "connect_type" under port device to expose port connect type to user space. Patch3 create two link files under port device and its child device to show their relationship under sysfs. Following patchset is based on the commit f7b1b18 "USB: EHCI: fix build error in ChipIdea host driver" USB: Set usb port's DeviceRemovable according acpi information in EHCI usb/xhci: set root hub's DeviceRemovable according to usb port connect type usb: Create link files between child device and usb port device. usb: Add "portX/connect_type" attribute to expose usb port's connect type Documentation/ABI/testing/sysfs-bus-usb | 9 +++++++++ drivers/usb/core/hub.c | 83 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ drivers/usb/core/usb.h | 4 ---- drivers/usb/host/ehci-hub.c | 9 +++++++++ drivers/usb/host/xhci-hub.c | 19 +++++++++++++++++-- include/linux/usb.h | 4 ++++ 6 files changed, 122 insertions(+), 6 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html