diff options
| author | Matthew Garrett <mjg@redhat.com> | 2012-02-03 17:11:54 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-02-09 08:40:11 -0800 |
| commit | 0846e7e9856c0928223447d9349a877202a63f24 (patch) | |
| tree | 1ef6df58927568478e17396855c579ad45aa9fee /include/linux/usb.h | |
| parent | af74d2dae8f85a0e90a30594beb507f5d954fa3f (diff) | |
| download | lwn-0846e7e9856c0928223447d9349a877202a63f24.tar.gz lwn-0846e7e9856c0928223447d9349a877202a63f24.zip | |
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 <mjg@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/usb.h')
| -rw-r--r-- | include/linux/usb.h | 8 |
1 files changed, 8 insertions, 0 deletions
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) |