From 0846e7e9856c0928223447d9349a877202a63f24 Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Fri, 3 Feb 2012 17:11:54 -0500 Subject: usb: Add support for indicating whether a port is removable Userspace may want to make policy decisions based on whether or not a given USB device is removable. Add a per-device member and support for exposing it in sysfs. Information sources to populate it will be added later. Signed-off-by: Matthew Garrett Signed-off-by: Greg Kroah-Hartman --- include/linux/usb.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include/linux') diff --git a/include/linux/usb.h b/include/linux/usb.h index 27a4e16d2bf1..b2eb3a47caf5 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -376,6 +376,12 @@ struct usb_bus { struct usb_tt; +enum usb_device_removable { + USB_DEVICE_REMOVABLE_UNKNOWN = 0, + USB_DEVICE_REMOVABLE, + USB_DEVICE_FIXED, +}; + /** * struct usb_device - kernel's representation of a USB device * @devnum: device number; address on a USB bus @@ -432,6 +438,7 @@ struct usb_tt; * @wusb_dev: if this is a Wireless USB device, link to the WUSB * specific data for the device. * @slot_id: Slot ID assigned by xHCI + * @removable: Device can be physically removed from this port * * Notes: * Usbcore drivers should not set usbdev->state directly. Instead use @@ -509,6 +516,7 @@ struct usb_device { #endif struct wusb_dev *wusb_dev; int slot_id; + enum usb_device_removable removable; }; #define to_usb_device(d) container_of(d, struct usb_device, dev) -- cgit v1.2.2