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USB: Add the USB 2.0 extension descriptor.

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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>
This commit is contained in:
Sarah Sharp 2008-04-25 16:46:45 -07:00 committed by Greg Kroah-Hartman
parent 6e1ab3ed82
commit 35e5437e8c
1 changed files with 11 additions and 1 deletions
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12
include/linux/usb/ch9.h
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@ -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