diff options
| author | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2009-04-27 19:54:10 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-06-15 21:44:48 -0700 |
| commit | 6b403b020c1f42180b14d28d832da61167cff822 (patch) | |
| tree | 4b7271244f3b150a31c856970651d2171343d2c7 /drivers/usb/core/hcd.h | |
| parent | 7f84eef0dafb1d318263d8b71c38700aaf2d530d (diff) | |
USB: Add SuperSpeed to the list of USB device speeds.
Modify the USB core to handle the new USB 3.0 speed, "SuperSpeed". This
is 5.0 Gbps (wire speed). There are probably more places that check for
speed that I've missed.
SuperSpeed devices have a 512 byte endpoint 0 max packet size. This shows
up as a bMaxPacketSize0 set to 0x09 (see table 9-8 of the USB 3.0 bus
spec).
xHCI spec says that the xHC can handle intervals up to 2^15 microframes. That
might change when real silicon becomes available.
Add FIXME note for SuperSpeed isochronous endpoints. They can transmit up
to 16 packets in one "burst" before they wait for an acknowledgment of the
packets. They can do up to 3 bursts per microframe (determined by the
mult value in the endpoint companion descriptor). The xHCI driver doesn't
have support for isoc yet, so fix this later.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/core/hcd.h')
| -rw-r--r-- | drivers/usb/core/hcd.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h index 7a47498b0aac..4f6ee60d97c6 100644 --- a/drivers/usb/core/hcd.h +++ b/drivers/usb/core/hcd.h @@ -174,6 +174,7 @@ struct hc_driver { #define HCD_USB11 0x0010 /* USB 1.1 */ #define HCD_USB2 0x0020 /* USB 2.0 */ #define HCD_USB3 0x0040 /* USB 3.0 */ +#define HCD_MASK 0x0070 /* called to init HCD and root hub */ int (*reset) (struct usb_hcd *hcd); |