diff options
| author | Sarah Sharp <sarah.a.sharp@intel.com> | 2008-04-25 16:46:45 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-05-02 10:25:54 -0700 |
| commit | 35e5437e8c8cd013e1e573ac4671d556819edbcb (patch) | |
| tree | 7c03a2b7d00366404536fbab8b618e4f5bc511c2 | |
| parent | 6e1ab3ed825418320319f44af1b990c9c3f4c45b (diff) | |
USB: Add the USB 2.0 extension descriptor.
This device descriptor was added by the recent USB Link Power Management (LPM)
ECN. It indicates whether the USB device supports LPM.
This descriptor is grouped under a Binary Device Object Store (BOS) descriptor.
Update the BOS comments to indicate any USB device (not just wireless USB
devices) can implement BOS descriptors.
Signed-off-by: Sarah Sharp <sarah.a.sharp@intel.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | include/linux/usb/ch9.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h index 7e0d3084f76..73a2f4eb1f7 100644 --- a/include/linux/usb/ch9.h +++ b/include/linux/usb/ch9.h @@ -455,7 +455,7 @@ struct usb_encryption_descriptor { /*-------------------------------------------------------------------------*/ -/* USB_DT_BOS: group of wireless capabilities */ +/* USB_DT_BOS: group of device-level capabilities */ struct usb_bos_descriptor { __u8 bLength; __u8 bDescriptorType; @@ -501,6 +501,16 @@ struct usb_wireless_cap_descriptor { /* Ultra Wide Band */ __u8 bReserved; } __attribute__((packed)); +#define USB_CAP_TYPE_EXT 2 + +struct usb_ext_cap_descriptor { /* Link Power Management */ + __u8 bLength; + __u8 bDescriptorType; + __u8 bDevCapabilityType; + __u8 bmAttributes; +#define USB_LPM_SUPPORT (1 << 1) /* supports LPM */ +} __attribute__((packed)); + /*-------------------------------------------------------------------------*/ /* USB_DT_WIRELESS_ENDPOINT_COMP: companion descriptor associated with |