diff options
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 f29831bad235..f8506ed0f97b 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -636,6 +636,14 @@ extern void usb_unlocked_enable_lpm(struct usb_device *udev); extern int usb_disable_ltm(struct usb_device *udev); extern void usb_enable_ltm(struct usb_device *udev); +static inline bool usb_device_supports_ltm(struct usb_device *udev) +{ + if (udev->speed != USB_SPEED_SUPER || !udev->bos || !udev->bos->ss_cap) + return false; + return udev->bos->ss_cap->bmAttributes & USB_LTM_SUPPORT; +} + + /*-------------------------------------------------------------------------*/ /* for drivers using iso endpoints */ |